| slovo | definícia |
manganese
(encz) | manganese,mangan n: [chem.] macska |
Manganese
(gcide) | Manganese \Man`ga*nese"\, n. [F. mangan[`e]se, It. manganese,
sasso magnesio; prob. corrupted from L. magnes, because of
its resemblance to the magnet. See Magnet, and cf.
Magnesia.] (Chem.)
An element obtained by reduction of its oxide, as a hard,
grayish white metal, fusible with difficulty (melting point
1244[deg] C), but easily oxidized. Its ores occur abundantly
in nature as the minerals pyrolusite, manganite, etc. Symbol
Mn. Atomic number 25; Atomic weight 54.938 [C=12.011].
[1913 Webster +PJC]
Note: An alloy of manganese with iron (called ferromanganese)
is used to increase the density and hardness of steel.
[1913 Webster]
Black oxide of manganese, Manganese dioxide or {Manganese
peroxide}, or Black manganese (Chem.), a heavy black powder
MnO2, occurring native as the mineral pyrolusite, and
valuable as a strong oxidizer; -- called also familiarly
manganese. It colors glass violet, and is used as a
decolorizer to remove the green tint of impure glass.
[1913 Webster] |
manganese
(gcide) | Mn \Mn\, n. (Chem.)
The chemical symbol for manganese.
[PJC] |
manganese
(wn) | manganese
n 1: a hard brittle grey polyvalent metallic element that
resembles iron but is not magnetic; used in making steel;
occurs in many minerals [syn: manganese, Mn, {atomic
number 25}] |
manganese
(elements) | manganese
Symbol: Mn
Atomic number: 25
Atomic weight: 54.938
Grey brittle metallic transition element. Rather electropositive,
combines
with some non-metals when heated. Discovered in 1774 by Scheele.
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| | podobné slovo | definícia |
iron manganese tungsten
(encz) | iron manganese tungsten, n: |
manganese bronze
(encz) | manganese bronze, n: |
manganese steel
(encz) | manganese steel, n: |
manganese tetroxide
(encz) | manganese tetroxide, n: |
Black manganese
(gcide) | Manganese \Man`ga*nese"\, n. [F. mangan[`e]se, It. manganese,
sasso magnesio; prob. corrupted from L. magnes, because of
its resemblance to the magnet. See Magnet, and cf.
Magnesia.] (Chem.)
An element obtained by reduction of its oxide, as a hard,
grayish white metal, fusible with difficulty (melting point
1244[deg] C), but easily oxidized. Its ores occur abundantly
in nature as the minerals pyrolusite, manganite, etc. Symbol
Mn. Atomic number 25; Atomic weight 54.938 [C=12.011].
[1913 Webster +PJC]
Note: An alloy of manganese with iron (called ferromanganese)
is used to increase the density and hardness of steel.
[1913 Webster]
Black oxide of manganese, Manganese dioxide or {Manganese
peroxide}, or Black manganese (Chem.), a heavy black powder
MnO2, occurring native as the mineral pyrolusite, and
valuable as a strong oxidizer; -- called also familiarly
manganese. It colors glass violet, and is used as a
decolorizer to remove the green tint of impure glass.
[1913 Webster]Black \Black\ (bl[a^]k), a. [OE. blak, AS. bl[ae]c; akin to
Icel. blakkr dark, swarthy, Sw. bl[aum]ck ink, Dan. bl[ae]k,
OHG. blach, LG. & D. blaken to burn with a black smoke. Not
akin to AS. bl[=a]c, E. bleak pallid. [root]98.]
1. Destitute of light, or incapable of reflecting it; of the
color of soot or coal; of the darkest or a very dark
color, the opposite of white; characterized by such a
color; as, black cloth; black hair or eyes.
[1913 Webster]
O night, with hue so black! --Shak.
[1913 Webster]
2. In a less literal sense: Enveloped or shrouded in
darkness; very dark or gloomy; as, a black night; the
heavens black with clouds.
[1913 Webster]
I spy a black, suspicious, threatening cloud.
--Shak.
[1913 Webster]
3. Fig.: Dismal, gloomy, or forbidding, like darkness;
destitute of moral light or goodness; atrociously wicked;
cruel; mournful; calamitous; horrible. "This day's black
fate." "Black villainy." "Arise, black vengeance." "Black
day." "Black despair." --Shak.
[1913 Webster]
4. Expressing menace, or discontent; threatening; sullen;
foreboding; as, to regard one with black looks.
[1913 Webster]
Note: Black is often used in self-explaining compound words;
as, black-eyed, black-faced, black-haired,
black-visaged.
[1913 Webster]
Black act, the English statute 9 George I, which makes it a
felony to appear armed in any park or warren, etc., or to
hunt or steal deer, etc., with the face blackened or
disguised. Subsequent acts inflicting heavy penalties for
malicious injuries to cattle and machinery have been
called black acts.
Black angel (Zool.), a fish of the West Indies and Florida
(Holacanthus tricolor), with the head and tail yellow,
and the middle of the body black.
Black antimony (Chem.), the black sulphide of antimony,
Sb2S3, used in pyrotechnics, etc.
Black bear (Zool.), the common American bear ({Ursus
Americanus}).
Black beast. See {B[^e]te noire}.
Black beetle (Zool.), the common large cockroach ({Blatta
orientalis}).
Black bonnet (Zool.), the black-headed bunting ({Embriza
Sch[oe]niclus}) of Europe.
Black canker, a disease in turnips and other crops,
produced by a species of caterpillar.
Black cat (Zool.), the fisher, a quadruped of North America
allied to the sable, but larger. See Fisher.
Black cattle, any bovine cattle reared for slaughter, in
distinction from dairy cattle. [Eng.]
Black cherry. See under Cherry.
Black cockatoo (Zool.), the palm cockatoo. See Cockatoo.
Black copper. Same as Melaconite.
Black currant. (Bot.) See Currant.
Black diamond. (Min.) See Carbonado.
Black draught (Med.), a cathartic medicine, composed of
senna and magnesia.
Black drop (Med.), vinegar of opium; a narcotic preparation
consisting essentially of a solution of opium in vinegar.
Black earth, mold; earth of a dark color. --Woodward.
Black flag, the flag of a pirate, often bearing in white a
skull and crossbones; a signal of defiance.
Black flea (Zool.), a flea beetle (Haltica nemorum)
injurious to turnips.
Black flux, a mixture of carbonate of potash and charcoal,
obtained by deflagrating tartar with half its weight of
niter. --Brande & C.
Black Forest [a translation of G. Schwarzwald], a forest in
Baden and W["u]rtemburg, in Germany; a part of the ancient
Hercynian forest.
Black game, or Black grouse. (Zool.) See Blackcock,
Grouse, and Heath grouse.
Black grass (Bot.), a grasslike rush of the species {Juncus
Gerardi}, growing on salt marshes, and making good hay.
Black gum (Bot.), an American tree, the tupelo or
pepperidge. See Tupelo.
Black Hamburg (grape) (Bot.), a sweet and juicy variety of
dark purple or "black" grape.
Black horse (Zool.), a fish of the Mississippi valley
(Cycleptus elongatus), of the sucker family; the
Missouri sucker.
Black lemur (Zool.), the Lemurniger of Madagascar; the
acoumbo of the natives.
Black list, a list of persons who are for some reason
thought deserving of censure or punishment; -- esp. a list
of persons stigmatized as insolvent or untrustworthy, made
for the protection of tradesmen or employers. See
Blacklist, v. t.
Black manganese (Chem.), the black oxide of manganese,
MnO2.
Black Maria, the close wagon in which prisoners are carried
to or from jail.
Black martin (Zool.), the chimney swift. See Swift.
Black moss (Bot.), the common so-called long moss of the
southern United States. See Tillandsia.
Black oak. See under Oak.
Black ocher. See Wad.
Black pigment, a very fine, light carbonaceous substance,
or lampblack, prepared chiefly for the manufacture of
printers' ink. It is obtained by burning common coal tar.
Black plate, sheet iron before it is tinned. --Knight.
Black quarter, malignant anthrax with engorgement of a
shoulder or quarter, etc., as of an ox.
Black rat (Zool.), one of the species of rats ({Mus
rattus}), commonly infesting houses.
Black rent. See Blackmail, n., 3.
Black rust, a disease of wheat, in which a black, moist
matter is deposited in the fissures of the grain.
Black sheep, one in a family or company who is unlike the
rest, and makes trouble.
Black silver. (Min.) See under Silver.
Black and tan, black mixed or spotted with tan color or
reddish brown; -- used in describing certain breeds of
dogs.
Black tea. See under Tea.
Black tin (Mining), tin ore (cassiterite), when dressed,
stamped and washed, ready for smelting. It is in the form
of a black powder, like fine sand. --Knight.
Black walnut. See under Walnut.
Black warrior (Zool.), an American hawk (Buteo Harlani).
[1913 Webster]
Syn: Dark; murky; pitchy; inky; somber; dusky; gloomy; swart;
Cimmerian; ebon; atrocious.
[1913 Webster] |
Black oxide of manganese
(gcide) | Manganese \Man`ga*nese"\, n. [F. mangan[`e]se, It. manganese,
sasso magnesio; prob. corrupted from L. magnes, because of
its resemblance to the magnet. See Magnet, and cf.
Magnesia.] (Chem.)
An element obtained by reduction of its oxide, as a hard,
grayish white metal, fusible with difficulty (melting point
1244[deg] C), but easily oxidized. Its ores occur abundantly
in nature as the minerals pyrolusite, manganite, etc. Symbol
Mn. Atomic number 25; Atomic weight 54.938 [C=12.011].
[1913 Webster +PJC]
Note: An alloy of manganese with iron (called ferromanganese)
is used to increase the density and hardness of steel.
[1913 Webster]
Black oxide of manganese, Manganese dioxide or {Manganese
peroxide}, or Black manganese (Chem.), a heavy black powder
MnO2, occurring native as the mineral pyrolusite, and
valuable as a strong oxidizer; -- called also familiarly
manganese. It colors glass violet, and is used as a
decolorizer to remove the green tint of impure glass.
[1913 Webster] |
gray manganese ore
(gcide) | Manganite \Man"ga*nite\, n.
1. (Min.) One of the oxides of manganese; -- called also
gray manganese ore. It occurs in brilliant steel-gray or
iron-black crystals, also massive.
[1913 Webster]
2. (Chem.) A compound of manganese dioxide with a metallic
oxide; so called as though derived from the hypothetical
manganous acid.
[1913 Webster] |
Manganese
(gcide) | Manganese \Man`ga*nese"\, n. [F. mangan[`e]se, It. manganese,
sasso magnesio; prob. corrupted from L. magnes, because of
its resemblance to the magnet. See Magnet, and cf.
Magnesia.] (Chem.)
An element obtained by reduction of its oxide, as a hard,
grayish white metal, fusible with difficulty (melting point
1244[deg] C), but easily oxidized. Its ores occur abundantly
in nature as the minerals pyrolusite, manganite, etc. Symbol
Mn. Atomic number 25; Atomic weight 54.938 [C=12.011].
[1913 Webster +PJC]
Note: An alloy of manganese with iron (called ferromanganese)
is used to increase the density and hardness of steel.
[1913 Webster]
Black oxide of manganese, Manganese dioxide or {Manganese
peroxide}, or Black manganese (Chem.), a heavy black powder
MnO2, occurring native as the mineral pyrolusite, and
valuable as a strong oxidizer; -- called also familiarly
manganese. It colors glass violet, and is used as a
decolorizer to remove the green tint of impure glass.
[1913 Webster]Mn \Mn\, n. (Chem.)
The chemical symbol for manganese.
[PJC] |
manganese bronze
(gcide) | manganese bronze \manganese bronze\ n.
A brass alloy having from 1 to 4 percent of manganese added
to harden it; made by adding manganese to the copper and zinc
used in brass.
Syn: high-strength brass.
[WordNet 1.5] |
Manganese dioxide
(gcide) | Manganese \Man`ga*nese"\, n. [F. mangan[`e]se, It. manganese,
sasso magnesio; prob. corrupted from L. magnes, because of
its resemblance to the magnet. See Magnet, and cf.
Magnesia.] (Chem.)
An element obtained by reduction of its oxide, as a hard,
grayish white metal, fusible with difficulty (melting point
1244[deg] C), but easily oxidized. Its ores occur abundantly
in nature as the minerals pyrolusite, manganite, etc. Symbol
Mn. Atomic number 25; Atomic weight 54.938 [C=12.011].
[1913 Webster +PJC]
Note: An alloy of manganese with iron (called ferromanganese)
is used to increase the density and hardness of steel.
[1913 Webster]
Black oxide of manganese, Manganese dioxide or {Manganese
peroxide}, or Black manganese (Chem.), a heavy black powder
MnO2, occurring native as the mineral pyrolusite, and
valuable as a strong oxidizer; -- called also familiarly
manganese. It colors glass violet, and is used as a
decolorizer to remove the green tint of impure glass.
[1913 Webster] |
manganese epidote
(gcide) | Epidote \Ep"i*dote\, n. [Gr. ? to give besides; ? over + ? to
give: cf. F. ['e]pidote. So named from the enlargement of the
base of the primary, in some of the secondary forms.] (Min.)
A mineral, commonly of a yellowish green (pistachio) color,
occurring granular, massive, columnar, and in monoclinic
crystals. It is a silicate of alumina, lime, and oxide of
iron, or manganese.
[1913 Webster]
Note: The Epidote group includes ordinary epidote, zoisite or
lime epidote, piedmontite or manganese epidote,
allanite or cerium epidote.
[1913 Webster] |
Manganese peroxide
(gcide) | Manganese \Man`ga*nese"\, n. [F. mangan[`e]se, It. manganese,
sasso magnesio; prob. corrupted from L. magnes, because of
its resemblance to the magnet. See Magnet, and cf.
Magnesia.] (Chem.)
An element obtained by reduction of its oxide, as a hard,
grayish white metal, fusible with difficulty (melting point
1244[deg] C), but easily oxidized. Its ores occur abundantly
in nature as the minerals pyrolusite, manganite, etc. Symbol
Mn. Atomic number 25; Atomic weight 54.938 [C=12.011].
[1913 Webster +PJC]
Note: An alloy of manganese with iron (called ferromanganese)
is used to increase the density and hardness of steel.
[1913 Webster]
Black oxide of manganese, Manganese dioxide or {Manganese
peroxide}, or Black manganese (Chem.), a heavy black powder
MnO2, occurring native as the mineral pyrolusite, and
valuable as a strong oxidizer; -- called also familiarly
manganese. It colors glass violet, and is used as a
decolorizer to remove the green tint of impure glass.
[1913 Webster] |
Manganese steel
(gcide) | Manganese steel \Man`ga*nese" steel\
Cast steel containing a considerable percentage (10-14) of
manganese, which makes it very hard and tough and highly
resistant to wear. See Alloy steel, above.
[Webster 1913 Suppl.] |
manganese tungstate
(gcide) | Hubnerite \H["u]b"ner*ite\, n. [After H["u]bner, who analyzed
it.] (Min.)
A mineral of brownish black color, occurring in columnar or
foliated masses. It is native manganese tungstate. Huch |
Red manganese
(gcide) | Red \Red\, a. [Compar. Redder (-d?r); superl. Reddest.] [OE.
red, reed, AS. re['a]d, re['o]d; akin to OS. r[=o]d, OFries.
r[=a]d, D. rood, G. roht, rot, OHG. r[=o]t, Dan. & Sw.
r["o]d, Icel. rau[eth]r, rj[=o][eth]r, Goth. r['a]uds, W.
rhudd, Armor. ruz, Ir. & Gael. ruadh, L. ruber, rufus, Gr.
'eryqro`s, Skr. rudhira, rohita; cf. L. rutilus. [root]113.
Cf. Erysipelas, Rouge, Rubric, Ruby, Ruddy,
Russet, Rust.]
Of the color of blood, or of a tint resembling that color; of
the hue of that part of the rainbow, or of the solar
spectrum, which is furthest from the violet part. "Fresh
flowers, white and reede." --Chaucer.
[1913 Webster]
Your color, I warrant you, is as red as any rose.
--Shak.
[1913 Webster]
Note: Red is a general term, including many different shades
or hues, as scarlet, crimson, vermilion, orange red,
and the like.
[1913 Webster]
Note: Red is often used in the formation of self-explaining
compounds; as, red-breasted, red-cheeked, red-faced,
red-haired, red-headed, red-skinned, red-tailed,
red-topped, red-whiskered, red-coasted.
[1913 Webster]
Red admiral (Zool.), a beautiful butterfly ({Vanessa
Atalanta}) common in both Europe and America. The front
wings are crossed by a broad orange red band. The larva
feeds on nettles. Called also Atalanta butterfly, and
nettle butterfly.
Red ant. (Zool.)
(a) A very small ant (Myrmica molesta) which often infests
houses.
(b) A larger reddish ant (Formica sanguinea), native of
Europe and America. It is one of the slave-making
species.
Red antimony (Min.), kermesite. See Kermes mineral
(b), under Kermes.
Red ash (Bot.), an American tree (Fraxinus pubescens),
smaller than the white ash, and less valuable for timber.
--Cray.
Red bass. (Zool.) See Redfish
(d) .
Red bay (Bot.), a tree (Persea Caroliniensis) having the
heartwood red, found in swamps in the Southern United
States.
Red beard (Zool.), a bright red sponge ({Microciona
prolifera}), common on oyster shells and stones. [Local,
U.S.]
Red birch (Bot.), a species of birch (Betula nigra)
having reddish brown bark, and compact, light-colored
wood. --Gray.
Red blindness. (Med.) See Daltonism.
Red book, a book containing the names of all the persons in
the service of the state. [Eng.]
Red book of the Exchequer, an ancient record in which are
registered the names of all that held lands per baroniam
in the time of Henry II. --Brande & C.
Red brass, an alloy containing eight parts of copper and
three of zinc.
Red bug. (Zool.)
(a) A very small mite which in Florida attacks man, and
produces great irritation by its bites.
(b) A red hemipterous insect of the genus Pyrrhocoris,
especially the European species (Pyrrhocoris apterus),
which is bright scarlet and lives in clusters on tree
trunks.
(c) See Cotton stainder, under Cotton.
Red cedar. (Bot.) An evergreen North American tree
(Juniperus Virginiana) having a fragrant red-colored
heartwood.
(b) A tree of India and Australia (Cedrela Toona) having
fragrant reddish wood; -- called also toon tree in
India.
Red horse. (Zool.)
(a) Any large American red fresh-water sucker, especially
Moxostoma macrolepidotum and allied species.
(b) See the Note under Drumfish.
Red lead.
(Chem) See under Lead, and Minium.
Red-lead ore. (Min.) Same as Crocoite.
Red liquor (Dyeing), a solution consisting essentially of
aluminium acetate, used as a mordant in the fixation of
dyestuffs on vegetable fiber; -- so called because used
originally for red dyestuffs. Called also red mordant.
Red maggot (Zool.), the larva of the wheat midge.
Red manganese. (Min.) Same as Rhodochrosite.
Red man, one of the American Indians; -- so called from his
color.
Red maple (Bot.), a species of maple (Acer rubrum). See
Maple.
Red mite. (Zool.) See Red spider, below.
Red mulberry (Bot.), an American mulberry of a dark purple
color (Morus rubra).
Red mullet (Zool.), the surmullet. See Mullet.
Red ocher (Min.), a soft earthy variety of hematite, of a
reddish color.
Red perch (Zool.), the rosefish.
Red phosphorus. (Chem.) See under Phosphorus.
Red pine (Bot.), an American species of pine ({Pinus
resinosa}); -- so named from its reddish bark.
Red precipitate. See under Precipitate.
Red Republican (European Politics), originally, one who
maintained extreme republican doctrines in France, --
because a red liberty cap was the badge of the party; an
extreme radical in social reform. [Cant]
Red ribbon, the ribbon of the Order of the Bath in England.
Red sanders. (Bot.) See Sanders.
Red sandstone. (Geol.) See under Sandstone.
Red scale (Zool.), a scale insect (Aspidiotus aurantii)
very injurious to the orange tree in California and
Australia.
Red silver (Min.), an ore of silver, of a ruby-red or
reddish black color. It includes proustite, or light red
silver, and pyrargyrite, or dark red silver.
Red snapper (Zool.), a large fish (Lutjanus aya syn.
Lutjanus Blackfordii) abundant in the Gulf of Mexico and
about the Florida reefs.
Red snow, snow colored by a mocroscopic unicellular alga
(Protococcus nivalis) which produces large patches of
scarlet on the snows of arctic or mountainous regions.
Red softening (Med.) a form of cerebral softening in which
the affected parts are red, -- a condition due either to
infarction or inflammation.
Red spider (Zool.), a very small web-spinning mite
(Tetranychus telarius) which infests, and often
destroys, plants of various kinds, especially those
cultivated in houses and conservatories. It feeds mostly
on the under side of the leaves, and causes them to turn
yellow and die. The adult insects are usually pale red.
Called also red mite.
Red squirrel (Zool.), the chickaree.
Red tape,
(a) the tape used in public offices for tying up documents,
etc. Hence,
(b) official formality and delay; excessive bureaucratic
paperwork.
Red underwing (Zool.), any species of noctuid moths
belonging to Catacola and allied genera. The numerous
species are mostly large and handsomely colored. The under
wings are commonly banded with bright red or orange.
Red water, a disease in cattle, so called from an
appearance like blood in the urine.
[1913 Webster] |
austenitic manganese steel
(wn) | austenitic manganese steel
n 1: a steel with a relatively large component (10-14%) of
manganese; highly resistant to wear and shock [syn:
manganese steel, austenitic manganese steel] |
iron manganese tungsten
(wn) | iron manganese tungsten
n 1: a mineral consisting of iron and manganese tungstate in
crystalline form; the principal ore of tungsten; found in
quartz veins associated with granitic rocks [syn:
wolframite, iron manganese tungsten] |
manganese bronze
(wn) | manganese bronze
n 1: a brass with from 1-4% manganese to harden it [syn:
manganese bronze, high-strength brass] |
manganese steel
(wn) | manganese steel
n 1: a steel with a relatively large component (10-14%) of
manganese; highly resistant to wear and shock [syn:
manganese steel, austenitic manganese steel] |
manganese tetroxide
(wn) | manganese tetroxide
n 1: an oxide of manganese found naturally as hausmannite |
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