/ Dictionary / Index H hematocyst: Meaning and Definition of Find definitions for: he•mat•o•cyst Pronunciation: (hi-mat'u-sist", hē'mu-tu-, hem'u-), [key] — n. Pathol. a cyst containing blood. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hematocyst (Thesaurus) hematocryal hematocyte Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language