sipunculid

[ sahy-puhng-kyuh-lid ]

noun

1. an invertebrate of the phylum Sipuncula, comprising the peanut worms.

adjective

1. belonging or pertaining to the sipunculids.

Word History and Origins

Origin of sipunculid¹

1885–90; originally a member of the family Sipunculidae < New Latin, equivalent to Sipuncul ( us ) a genus ( Latin: variant of sīphunculus; siphuncle ) + -idae -id ²