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coma, comatoseness | a state of deep and often prolonged unconsciousness; usually the result of disease or injury | |
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coma | [in 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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coma | [in botany] a usually terminal tuft of bracts (as in the pineapple) or tuft of hairs (especially on certain seeds) |