Breadcrumb Home > Dictionary > Index S semen: Meaning and Definition of Find definitions for: se•men Pronunciation: (sē'mun), [key] — n. the viscid, whitish fluid produced in the male reproductive organs, containing spermatozoa. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: semen (Thesaurus) sememe Semënov ✖ Related Content Daily Word Quiz: donnybrook Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language