/ Dictionary / Index A animalculum: Meaning and Definition of Find definitions for: an•i•mal•cu•lum Pronunciation: (an"u-mal'kyu-lum), [key] — pl. -la animalcule. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: animalculum (Thesaurus) animalcule animal faith Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language