/ Dictionary / Index S soursop: Meaning and Definition of Find definitions for: sour•sop Pronunciation: (sour'sop", sou'ur-), [key] — n. the large, dark-green, slightly acid, pulpy fruit of a small West Indian tree, Annona muricata, of the annona family. the tree itself. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: soursop (Thesaurus) sour salt sourwood Related Content Daily Word Quiz: ounterfeit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language