/ Dictionary / Index C ctenidium: Meaning and Definition of Find definitions for: cte•nid•i•um Pronunciation: (ti-nid'ē-um), [key] — pl. -nid•i•a any of various comblike or featherlike structures, as the row of stiff bristles on the legs of a psocid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ctenidium (Thesaurus) CTC ctenizid Related Content Daily Word Quiz: quandary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language