spionid
1 of 2adjective
spi·o·nid
ˈspīənə̇d
: of or relating to the genus Spio or family Spionidae
spionid
2 of 2noun
"
plural -s
: a spionid worm
Word History
Etymology
Adjective
New Latin Spionidae
Noun
New Latin Spionidae, family of marine polychaete worms, from Spion-, Spio, type genus + -idae