/ Dictionary / Index W Weismann: Meaning and Definition of Find definitions for: Weis•mann Pronunciation: (vīs'män"), [key] 1834–1914, German biologist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: weismann (Thesaurus) Weiser Weismannism Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language