coma (redirected from alpha coma)

co·ma ¹  (km)

n. pl. co·mas

A state of deep, often prolonged unconsciousness, usually the result of injury, disease, or poison, in which an individual is incapable of sensing or responding to external stimuli and internal needs.

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[Greek kma, deep sleep.]

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co·ma ²  (km)

n. pl. co·mae (-m)

1. Astronomy The nebulous luminescent cloud containing the nucleus and constituting the major portion of the head of a comet.

2. Botany A usually terminal tuft or cluster, especially a tuft of hairs on a seed, as on a willow or milkseed.

3. Physics A diffuse, comet-shaped image of a point source of light or radiation caused by aberration in the optical system.

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[Latin, hair, from Greek kom.]

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comal adj.

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coma

Noun

a state of unconsciousness from which a person cannot be aroused, caused by injury, disease, or drugs [Greek kōma heavy sleep]

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coma ¹  (km)

Plural comas

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.

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coma ²  (km)

Plural comae (km)

1. Astronomy The brightly shining cloud of gas that encircles the nucleus and makes up the major portion of the head of a comet near the Sun. As a comet moves along its orbit away from the Sun, the gas and dust of the coma dissipate, leaving only the nucleus. A coma can have a diameter of up to 100,000 km (62,000 mi.). See more at comet.

2. Physics A diffuse, comet-shaped image of a point source of light or radiation caused by aberration in a lens or mirror. The image appears progressively elongated with distance from the center of the field of view.

Thesaurus

Noun	1.	coma - a state of deep and often prolonged unconsciousness; usually the result of disease or injury comatoseness unconsciousness - a state lacking normal awareness of the self or environment diabetic coma, Kussmaul's coma - coma that can develop in inadequately treated cases of diabetes mellitus hepatic coma - coma that can occur in severe cases of liver disease
	2.	coma - (botany) a usually terminal tuft of bracts (as in the pineapple) or tuft of hairs (especially on certain seeds) phytology, botany - the branch of biology that studies plants tuft, tussock - a bunch of hair or feathers or growing grass
	3.	coma - (astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole comet - (astronomy) a relatively small extraterrestrial body consisting of a frozen mass that travels around the sun in a highly elliptical orbit cloud - any collection of particles (e.g., smoke or dust) or gases that is visible

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coma

noun unconsciousness, trance, oblivion, lethargy, stupor, torpor, insensibility

Translations

coma [ˈkəumə] n → coma m

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coma [ˈkəumə] n → coma m

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coma [ˈkəumə] n → Koma nt;

to be in a coma → im Koma liegen

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coma [ˈkəumə] n → coma m inv

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coma

n coma [ˈkoumə]

a long-continuing unconscious state He was in a coma for several days after the accident. koma غَيْبوبَه، فُقْدان الذّاكِرَه кома kóma coma das Koma κώμα coma kooma اغما kooma coma תַרדֶמֶת निश्चेतना koma kóma koma dá coma こん睡状態 혼수 상태 koma koma koma coma koma, dyp bevisstløshet letarg, śpiączka coma comă кома kóma koma koma koma สภาพไม่รู้สึกตัวของผู้ป่วย koma 昏迷 кома طویل بے ہوشی sự hôn mê 昏迷