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.

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Origin of tetrabranchiate

First recorded in 1825–35; tetra- + branchiate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012