tetrabranchiate

[ te-truh-brang-kee-it, -eyt ]
/ ˌtɛ trəˈbræŋ ki ɪt, -ˌeɪt /

adjective

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

Origin of tetrabranchiate

First recorded in 1825–35; tetra- + branchiate

British Dictionary definitions for tetrabranchiate

tetrabranchiate

adjective (ˌtɛtrəˈbræŋkɪɪt, -ˌeɪt)

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

noun (ˌtɛtrəˈbræŋkɪˌeɪt)

any mollusc belonging to the Tetrabranchiata