protochordate

[ proh-toh-kawr-deyt ]
/ ˌproʊ toʊˈkɔr deɪt /

noun Zoology.

any of the nonvertebrate chordates, as the tunicates, cephalochordates, and hemichordates.

Origin of protochordate

1890–95; < New Latin Protochordata name of the group; see proto-, chordate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for protochordate

protochordate

/ (ˌprəʊtəʊˈkɔːdeɪt) /

noun

any chordate animal of the subphyla Hemichordata (acorn worms), Urochordata (tunicates), and Cephalochordata (lancelets)

adjective

of or relating to protochordates
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