/ Dictionary / Index C chlortetracycline: Meaning and Definition of Find definitions for: chlor•tet•ra•cy•cline Pronunciation: (klôr-te"tru-sī'klin, -klēn, klōr-), [key] — n. Pharm. a yellow, crystalline, antibiotic powder, CHNOCl, biosynthesized by Streptomyces aureofaciens, used in the treatment of infections. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: chlortetracycline (Thesaurus) chlorpyrifos chlorthalidone Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language