/ Dictionary / Index C collenchyma: Meaning and Definition of Find definitions for: col•len•chy•ma Pronunciation: (ku-leng'ku-mu), [key] — n. Bot. a layer of modified tissue consisting of cells that are thickened at the angles and usually elongated. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. collembolan collet Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language