Definition of COMA

noun : COMA

Source: WordNet 3.1

  • 1. (

    ) a state of deep and often prolonged unconsciousness; usually the result of disease or injury ;

  • 2. (

    ) (botany) a usually terminal tuft of bracts (as in the pineapple) or tuft of hairs (especially on certain seeds) ;

  • 3. (

    ) (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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