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[kom-i-doh] /ˈkɒm ɪˌdoʊ/
noun, plural comedos, comedones
[kom-i-doh-neez] /ˌkɒm ɪˈdoʊ niz/ (Show IPA).
a thickened secretion plugging a duct of the skin, especially of a sebaceous gland; blackhead.
Origin of comedo
1865-70; < New Latin; Latin: glutton, equivalent to comed(ere) to consume, eat up (com- com- + edere to eat) + agent suffix Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for comedones


noun (pl) comedos, comedones (ˌkɒmɪˈdəʊniːz)
(pathol) the technical name for blackhead
Word Origin
C19: from New Latin, from Latin: glutton, from comedere to eat up, from com- (intensive) + edere to eat
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 comedones



"blackhead," etc., 1866, from Latin comedo "glutton," from comedere "to eat up" (see comestible). A name formerly given to worms that devour the body; transferred in medical use to secretions that resemble them.

Online Etymology Dictionary, © 2010 Douglas Harper
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comedones in Medicine

comedo com·e·do (kŏm'ĭ-dō')
n. pl. com·e·dos or com·e·do·nes (-dō'nēz)
A blackhead and the primary lesion of acne vulgaris.

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