tetrabranchiate

[ te-truh-brang-kee-it, -eyt ]

adjective

1. belonging or pertaining to the Nautiloidea (Tetrabranchiata), a subclass or order of cephalopods with four gills, including the pearly nautilus and numerous fossil forms.

tetrabranchiate

adjective

1. of, relating to, or belonging to the Tetrabranchiata, a former order of cephalopod molluscs having four gills and including the pearly nautilus

noun

1. any mollusc belonging to the Tetrabranchiata

Word History and Origins

Origin of tetrabranchiate¹

First recorded in 1825–35; tetra- + branchiate