noun, plural com·e·dos, com·e·do·nes [kom-i-doh-neez] /ˌkɒm ɪˈdoʊ niz/. Medicine/Medical.
a thickened secretion plugging a duct of the skin, especially of a sebaceous gland; blackhead.
Origin of comedo
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noun plural comedos or comedones (ˌkɒmɪˈdəʊniːz)
Word Origin for comedo
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
"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
n. pl. com•e•dos
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.