English noun: coma |
1. | coma (cognition) a state of deep and often prolonged unconsciousness; usually the result of disease or injury |
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| Synonyms | comatoseness |
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| Broader (hypernym) | unconsciousness |
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| Narrower (hyponym) | diabetic coma, hepatic coma, Kussmaul's coma |
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2. | coma (plant) (botany) a usually terminal tuft of bracts (as in the pineapple) or tuft of hairs (especially on certain seeds) |
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| Broader (hypernym) | tuft, tussock |
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| Domain category | botany, phytology |
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3. | coma (object) (astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed |
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| Broader (hypernym) | cloud |
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| Part meronym | comet |
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| Domain category | astronomy, uranology |
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