/ Dictionary / Index S sperm bank: Meaning and Definition of Find definitions for: sperm' bank" Pronunciation: [key] a repository for storing sperm and keeping it viable under scientifically controlled conditions prior to its use in artificial insemination. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. spermatozoon sperm cell Related Content Daily Word Quiz: illegible Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language