Definition of porpitid in US English:

porpitid

noun

Zoology
rare
  • 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.

Pronunciation

porpitid

/ˈpɔːpɪtɪd/