/ Dictionary / Index S sun animalcule: Meaning and Definition of Find definitions for: sun' animal'cule Pronunciation: [key] a heliozoan. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sun-and-planet gear sunback Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language