[koh-muh] /ˈkoʊ mə/
noun, plural comas.
a state of prolonged unconsciousness, including a lack of response to stimuli, from which it is impossible to rouse a person.
[koh-muh] /ˈkoʊ mə/
noun, plural comae
[koh-mee] /ˈkoʊ mi/ (Show IPA)
Astronomy. the nebulous envelope around the nucleus of a comet.
Optics. a monochromatic aberration of a lens or other optical system in which the image from a point source cannot be brought into focus, the image of a point having the shape of a comet.
noun (pl) -mas
a state of unconsciousness from which a person cannot be aroused, caused by injury to the head, rupture of cerebral blood vessels, narcotics, poisons, etc
noun (pl) -mae (-miː)
(astronomy) the luminous cloud surrounding the frozen solid nucleus in the head of a comet, formed by vaporization of part of the nucleus when the comet is close to the sun
(optics) a type of lens defect characterized by the formation of a diffuse pear-shaped image from a point object
state of prolonged unconsciousness, 1640s, from Latinized form of Greek koma (genitive komatos) “deep sleep,” of uncertain origin.
“head of a comet,” 1765, from Latin coma, from Greek kome “hair of the head,” of unknown origin. Earlier in English as a botanical term for a tuft of hairs (1660s).
coma co·ma (kō’mə)
A state of profound unconsciousness in which an individual is incapable of sensing or responding to external stimuli.
A state of deep unconsciousness, usually resulting from brain trauma or metabolic disease, in which an individual is incapable of sensing or responding to external stimuli.
Plural comae (kō’mē)
An abnormal state of deep unconsciousness. A coma may occur as the result of trauma to the head, disease (such as meningitis, stroke, or diabetes mellitus), or poisoning.
- Coma aberration
coma aberration n. The distortion in image formation occurring when a bundle of light rays enters an optical system that is not parallel to the optic axis.
[koh-mey-ker, koh-mey-ker] /koʊˈmeɪ kər, ˈkoʊˌmeɪ kər/ noun, Finance. 1. a person who formally undertakes to discharge the duties of the of an instrument, especially a promissory note, in the event of the default.
[koh-muh ber-uh-nahy-seez] /ˈkoʊ mə ˌbɛr əˈnaɪ siz/ noun, genitive Comae Berenices [koh-mee ber-uh-nahy-seez] /ˈkoʊ mi ˌbɛr əˈnaɪ siz/ (Show IPA). Astronomy. 1. Berenice’s Hair, a northern constellation situated north of Virgo and between Boötes and Leo. /ˈkəʊmə ˌbɛrɪˈnaɪsiːz/ noun (Latin genitive) Comae Berenices (ˈkəʊmiː) 1. a faint constellation in the N hemisphere between Ursa Major […]
[koh-mahl; Spanish kaw-mahl] /koʊˈmɑl; Spanish kɔˈmɑl/ noun, plural comals Spanish, comales [kaw-mah-les] /kɔˈmɑ lɛs/ (Show IPA) 1. a griddle made from sandstone or earthenware. COMmon Algorithmic Language