Longman Dictionary of Contemporary English homepage

Date: 1600-1700
Language: Modern Latin
Origin: Greek koma 'deep sleep'

coma

 noun
     
Related topics: Illness and Disability
co‧ma [uncountable and countable]
MI someone who is in a coma has been unconscious for a long time, usually because of a serious illness or injury
be in/go into/come out of a coma
He went into a coma and died soon afterwards.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.
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