/ Dictionary / Index S sipunculid: Meaning and Definition of Find definitions for: si•pun•cu•lid Pronunciation: (sī-pung'kyu-lid), [key] — n. an invertebrate of the phylum Sipuncula, comprising the peanut worms. —adj. belonging or pertaining to the sipunculids. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sipunculid (Thesaurus) sippet si quaeris peninsulam amoenam, circumspice* Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language