slovodefinícia
Air cell
(gcide)
Air cell \Air" cell`\
1. (Bot.) A cavity in the cellular tissue of plants,
containing air only.
[1913 Webster]

2. (Anat.) A receptacle of air in various parts of the
system; as, a cell or minute cavity in the walls of the
air tubes of the lungs; the air sac of birds; a dilatation
of the air vessels in insects.
[1913 Webster]
Air cell
(gcide)
Cell \Cell\, n. [OF. celle, fr. L. cella; akin to celare to
hide, and E. hell, helm, conceal. Cf. Hall.]
1. A very small and close apartment, as in a prison or in a
monastery or convent; the hut of a hermit.
[1913 Webster]

The heroic confessor in his cell. --Macaulay.
[1913 Webster]

2. A small religious house attached to a monastery or
convent. "Cells or dependent priories." --Milman.
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3. Any small cavity, or hollow place.
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4. (Arch.)
(a) The space between the ribs of a vaulted roof.
(b) Same as Cella.
[1913 Webster]

5. (Elec.) A jar of vessel, or a division of a compound
vessel, for holding the exciting fluid of a battery.
[1913 Webster]

6. (Biol.) One of the minute elementary structures, of which
the greater part of the various tissues and organs of
animals and plants are composed.
[1913 Webster]

Note: All cells have their origin in the primary cell from
which the organism was developed. In the lowest animal
and vegetable forms, one single cell constitutes the
complete individual, such being called unicelluter
orgamisms. A typical cell is composed of a semifluid
mass of protoplasm, more or less granular, generally
containing in its center a nucleus which in turn
frequently contains one or more nucleoli, the whole
being surrounded by a thin membrane, the cell wall. In
some cells, as in those of blood, in the am[oe]ba, and
in embryonic cells (both vegetable and animal), there
is no restricting cell wall, while in some of the
unicelluliar organisms the nucleus is wholly wanting.
See Illust. of Bipolar.
[1913 Webster]

Air cell. See Air cell.

Cell development (called also cell genesis, {cell
formation}, and cytogenesis), the multiplication, of
cells by a process of reproduction under the following
common forms; segmentation or fission, gemmation or
budding, karyokinesis, and endogenous multiplication. See
Segmentation, Gemmation, etc.

Cell theory. (Biol.) See Cellular theory, under
Cellular.
[1913 Webster]
air cell
(wn)
air cell
n 1: a tiny sac for holding air in the lungs; formed by the
terminal dilation of tiny air passageways [syn: alveolus,
air sac, air cell]
podobné slovodefinícia
hair cell
(encz)
hair cell, n:
Air cell
(gcide)
Air cell \Air" cell`\
1. (Bot.) A cavity in the cellular tissue of plants,
containing air only.
[1913 Webster]

2. (Anat.) A receptacle of air in various parts of the
system; as, a cell or minute cavity in the walls of the
air tubes of the lungs; the air sac of birds; a dilatation
of the air vessels in insects.
[1913 Webster]Cell \Cell\, n. [OF. celle, fr. L. cella; akin to celare to
hide, and E. hell, helm, conceal. Cf. Hall.]
1. A very small and close apartment, as in a prison or in a
monastery or convent; the hut of a hermit.
[1913 Webster]

The heroic confessor in his cell. --Macaulay.
[1913 Webster]

2. A small religious house attached to a monastery or
convent. "Cells or dependent priories." --Milman.
[1913 Webster]

3. Any small cavity, or hollow place.
[1913 Webster]

4. (Arch.)
(a) The space between the ribs of a vaulted roof.
(b) Same as Cella.
[1913 Webster]

5. (Elec.) A jar of vessel, or a division of a compound
vessel, for holding the exciting fluid of a battery.
[1913 Webster]

6. (Biol.) One of the minute elementary structures, of which
the greater part of the various tissues and organs of
animals and plants are composed.
[1913 Webster]

Note: All cells have their origin in the primary cell from
which the organism was developed. In the lowest animal
and vegetable forms, one single cell constitutes the
complete individual, such being called unicelluter
orgamisms. A typical cell is composed of a semifluid
mass of protoplasm, more or less granular, generally
containing in its center a nucleus which in turn
frequently contains one or more nucleoli, the whole
being surrounded by a thin membrane, the cell wall. In
some cells, as in those of blood, in the am[oe]ba, and
in embryonic cells (both vegetable and animal), there
is no restricting cell wall, while in some of the
unicelluliar organisms the nucleus is wholly wanting.
See Illust. of Bipolar.
[1913 Webster]

Air cell. See Air cell.

Cell development (called also cell genesis, {cell
formation}, and cytogenesis), the multiplication, of
cells by a process of reproduction under the following
common forms; segmentation or fission, gemmation or
budding, karyokinesis, and endogenous multiplication. See
Segmentation, Gemmation, etc.

Cell theory. (Biol.) See Cellular theory, under
Cellular.
[1913 Webster]
Hair cells
(gcide)
Hair \Hair\ (h[^a]r), n. [OE. her, heer, h[ae]r, AS. h[=ae]r;
akin to OFries. h[=e]r, D. & G. haar, OHG. & Icel. h[=a]r,
Dan. haar, Sw. h[*a]r; cf. Lith. kasa.]
1. The collection or mass of filaments growing from the skin
of an animal, and forming a covering for a part of the
head or for any part or the whole of the body.
[1913 Webster]

2. One the above-mentioned filaments, consisting, in
vertebrate animals, of a long, tubular part which is free
and flexible, and a bulbous root imbedded in the skin.
[1913 Webster]

Then read he me how Sampson lost his hairs.
--Chaucer.
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And draweth new delights with hoary hairs.
--Spenser.
[1913 Webster]

3. Hair (human or animal) used for various purposes; as, hair
for stuffing cushions.
[1913 Webster]

4. (Zool.) A slender outgrowth from the chitinous cuticle of
insects, spiders, crustaceans, and other invertebrates.
Such hairs are totally unlike those of vertebrates in
structure, composition, and mode of growth.
[1913 Webster]

5. (Bot.) An outgrowth of the epidermis, consisting of one or
of several cells, whether pointed, hooked, knobbed, or
stellated. Internal hairs occur in the flower stalk of the
yellow frog lily (Nuphar).
[1913 Webster]

6. A spring device used in a hair-trigger firearm.
[1913 Webster]

7. A haircloth. [Obs.] --Chaucer.
[1913 Webster]

8. Any very small distance, or degree; a hairbreadth.
[1913 Webster]

Note: Hairs is often used adjectively or in combination; as,
hairbrush or hair brush, hair dye, hair oil, hairpin,
hair powder, a brush, a dye, etc., for the hair.
[1913 Webster]

Against the hair, in a rough and disagreeable manner;
against the grain. [Obs.] "You go against the hair of your
professions." --Shak.

Hair bracket (Ship Carp.), a molding which comes in at the
back of, or runs aft from, the figurehead.

Hair cells (Anat.), cells with hairlike processes in the
sensory epithelium of certain parts of the internal ear.


Hair compass, Hair divider, a compass or divider capable
of delicate adjustment by means of a screw.

Hair glove, a glove of horsehair for rubbing the skin.

Hair lace, a netted fillet for tying up the hair of the
head. --Swift.

Hair line, a line made of hair; a very slender line.

Hair moth (Zool.), any moth which destroys goods made of
hair, esp. Tinea biselliella.

Hair pencil, a brush or pencil made of fine hair, for
painting; -- generally called by the name of the hair
used; as, a camel's hair pencil, a sable's hair pencil,
etc.

Hair plate, an iron plate forming the back of the hearth of
a bloomery fire.

Hair powder, a white perfumed powder, as of flour or
starch, formerly much used for sprinkling on the hair of
the head, or on wigs.

Hair seal (Zool.), any one of several species of eared
seals which do not produce fur; a sea lion.

Hair seating, haircloth for seats of chairs, etc.

Hair shirt, a shirt, or a band for the loins, made of
horsehair, and worn as a penance.

Hair sieve, a strainer with a haircloth bottom.

Hair snake. See Gordius.

Hair space (Printing), the thinnest metal space used in
lines of type.

Hair stroke, a delicate stroke in writing.

Hair trigger, a trigger so constructed as to discharge a
firearm by a very slight pressure, as by the touch of a
hair. --Farrow.

Not worth a hair, of no value.

To a hair, with the nicest distinction.

To split hairs, to make distinctions of useless nicety.
[1913 Webster] hairball
hair cell
(wn)
hair cell
n 1: a sensory epithelial cell present in the organ of Corti

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