Sipunculid — synonyms, definition
1. sipunculid (Noun)
1 synonym
peanut worm
1 definition
sipunculid (Noun) — Small unsegmented marine worm that when disturbed retracts its anterior portion into the body giving the appearance of a peanut.
1 type of
invertebrate
2 parts of
Sipuncula phylum Sipuncula