| slovo | definícia |
coronae
(encz) | coronae,koróny n: Zdeněk Brož |
Coronae
(gcide) | Corona \Co*ro"na\ (k?-r?"n?), n.; pl. L. Coron[ae] (-n?), E.
Coronas (-n?z). [L. corona crown. See Crown.]
1. A crown or garland bestowed among the Romans as a reward
for distinguished services.
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2. (Arch.) The projecting part of a Classic cornice, the
under side of which is cut with a recess or channel so as
to form a drip. See Illust. of Column.
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3. (Anat.) The upper surface of some part, as of a tooth or
the skull; a crown.
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4. (Zool.) The shelly skeleton of a sea urchin.
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5. (Astronomy) A peculiar luminous appearance, or aureola,
which surrounds the sun, and which is seen only when the
sun is totally eclipsed by the moon.
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6. (Bot.)
(a) An inner appendage to a petal or a corolla, often
forming a special cup, as in the daffodil and jonquil.
(b) Any crownlike appendage at the top of an organ.
[1913 Webster]
7. (Meteorol.)
(a) A circle, usually colored, seen in peculiar states of
the atmosphere around and close to a luminous body, as
the sun or moon.
(b) A peculiar phase of the aurora borealis, formed by
the concentration or convergence of luminous beams
around the point in the heavens indicated by the
direction of the dipping needle.
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8. A crown or circlet suspended from the roof or vaulting of
churches, to hold tapers lighted on solemn occasions. It
is sometimes formed of double or triple circlets, arranged
pyramidically. Called also corona lucis. --Fairholt.
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9. (Mus.) A character [[pause]] called the pause or hold.
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| | podobné slovo | definícia |
coronae
(encz) | coronae,koróny n: Zdeněk Brož |
Nova Coronae Borealis
(gcide) | Nova \No"va\ (n[=o]"v[.a]), n.; pl. L. Novae (n[=o]"v[=e]), E.
Novas (n[=o]"v[.a]z). [L., fem. sing. of novus new.]
(Astron.)
A star which suddenly increases in brightness thousands of
times, then fades back to near its original intensity. It may
appear as a "new" star if its original brightness was too low
for routine observation. A star which suddenly increases in
brightness to many millions of times its original intensity
is a supernova, and the postulated mechanisms for the
increases of brightness of novae and supernovae are
different.
Note: The most important modern novae are:
No"va Co*ro"nae Bo`re*a"lis[1866];
No"va Cyg"ni[1876];
No"va An*dro"me*dae[1885];
No"va Au*ri"gae[1891-92];
No"va Per"se*i[1901]. There are two novae called {Nova
Persei}. They are:
(a) A small nova which appeared in 1881.
(b) An extraordinary nova which appeared in Perseus in 1901.
It was first sighted on February 22, and for one night
(February 23) was the brightest star in the sky. By July
it had almost disappeared, after which faint surrounding
nebulous masses were discovered, apparently moving
radially outward from the star at incredible velocity.
[Webster 1913 Suppl. +PJC] |
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