porpitid
/ˈpɔːpɪtɪd/Zoology and Palaeontology rare
noun
A colonial hydroid of the family Porpitidae (order Chondrophora), which includes the genera Porpita and Velella.
Origin
Late 19th century; earliest use found in Isaac Funk (1839–1912), publisher and reformer. From Porpita + -id, after Porpitidae, family name.