ALL meanings of protochordate
pro·to·chor·date
P p - noun protochordate any of the nonvertebrate chordates, as the tunicates, cephalochordates, and hemichordates. 1
- noun protochordate any chordate animal of the subphyla Hemichordata (acorn worms), Urochordata (tunicates), and Cephalochordata (lancelets) 0
- adjective protochordate of or relating to protochordates 0