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[kom-uh-tohs, koh-muh-] /ˈkɒm əˌtoʊs, ˈkoʊ mə-/
affected with or characterized by coma.
lacking alertness or energy; torpid:
comatose from lack of sleep.
Origin of comatose
1745-55; < Greek komat- (stem of kôma coma1) + -ose1
Related forms
comatosely, adverb
comatoseness, comatosity
[kom-uh-tos-i-tee] /ˌkɒm əˈtɒs ɪ ti/ (Show IPA),
noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for comatose
Contemporary Examples
Historical Examples
  • In the next bed on the right-hand side was a man who appeared in a comatose state.

    Jack Harkaway in New York Bracebridge Hemyng
  • I must have fainted away and the doctor told you I was in a comatose state, eh?

    Crown and Anchor John Conroy Hutcheson
  • The lad lay in a comatose condition long after all their resources had failed.

  • For hours he was speechless, and to every appearance in a comatose condition.

    Walt Whitman in Mickle Street Elizabeth Leavitt Keller
  • She was in a comatose state most of the time, and when she roused seemed quite ignorant of what had happened.

    The Girls at Mount Morris Amanda Minnie Douglas
British Dictionary definitions for comatose


/ˈkəʊməˌtəʊs; -ˌtəʊz/
in a state of coma
torpid; lethargic
Derived Forms
comatosely, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for comatose

1755, from Latinized form of Greek komat-, comb. form of koma (genitive komatos; see coma) + -ose (1). Perhaps immediately from French comateux. Transferred sense of "lethargic" is from 1828.

Online Etymology Dictionary, © 2010 Douglas Harper
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comatose in Medicine

comatose co·ma·tose (kō'mə-tōs', kŏm'ə-)

  1. Of, relating to, or affected with coma.

  2. Marked by lethargy; torpid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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