comaとは

意味・読み方・使い方

語源 1

Borrowed from Ancient Greek κῶμα (kôma, “deep sleep”).

名詞

coma (複数形 comas)

1. A state of unconsciousness from which one may not wake up, usually induced by some form of trauma.
   • 2004, Carlin, George, When Will Jesus Bring the Pork Chops?‎^[1], New York: Hyperion Books, →ISBN, OCLC 757869006, OL 24604921M, page 208:

     I wonder if a person who comes out of a coma feels refreshed and well rested.

派生語

関連する語

• comatose

参考

• persistent vegetative state
• brain death

語源 2

Borrowed from Latin coma (“hair of the head”), from Ancient Greek κόμη (kómē, “hair”).

Hubble image of an icy Comet, showing nucleus and coma

In this image the stars near the edge of the field form comae because of the comatic aberration of the wide-angle lens

In each of these trees the branches form a well-defined coma

In this turmeric plant, the tuft of magenta bracts form a coma

Each of these milkweed seeds has a coma of silky hairs at one end

名詞

coma (複数形 comae)

1. (astronomy) A cloud of dust surrounding the nucleus of a comet.
2. (optics) A defect characterized by diffuse, pear-shaped images that in an ideal image would appear as points.
3. (botany) A tuft or bunch, such as the assemblage of branches forming the head of a tree, a cluster of bracts when empty and terminating the inflorescence of a plant, or a tuft of long hairs on certain seeds.

アナグラム

• AMOC, OAMC, camo, maco

Latin

語源

Borrowed from Ancient Greek κόμη (kómē, “hair of the head”), which is of uncertain origin and is sometimes linked to κόμέω (“to care for (in the sense of hair)”).

発音

• (Classical) IPA^(key): /ˈko.ma/, [ˈkɔmä]
• (Ecclesiastical) IPA^(key): /ˈko.ma/, [ˈkɔːmɑ]

名詞

coma f (genitive comae); first declension

1. The hair of the head.

   Synonym: crīnis

2. foliage

語形変化

First-declension noun.

派生語

• comātus
• comula

派生した語

参照

• coma in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• coma in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• coma in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius かつ others, edited by Léopold Favre, 1883–1887)
• coma in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
• coma in William Smith et al., editor (1890) A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin