Protochordate
[proh-toh-kawr-deyt] /ˌproʊ toʊˈkɔr deɪt/
noun, Zoology.
1.
any of the nonvertebrate chordates, as the tunicates, cephalochordates, and hemichordates.
protochordate
/ˌprəʊtəʊˈkɔːdeɪt/
noun
1.
any chordate animal of the subphyla Hemichordata (acorn worms), Urochordata (tunicates), and Cephalochordata (lancelets)
adjective
2.
of or relating to protochordates
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