/ Dictionary / Index C cyclosporine: Meaning and Definition of Find definitions for: cy•clo•spo•rine Pronunciation: (sī"klu-spôr'ēn, -in, -spōr'-, sik"lu-), [key] — n. Pharm. a substance, synthesized by certain soil fungi, that suppresses the immune response by disabling helper T cells, used to minimize rejection of foreign tissue transplants. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cyclosis cyclostomatous Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language