protochordate

/proh-toh-kawr-deyt/US // ˌproʊ toʊˈkɔr deɪt //UK // (ˌprəʊtəʊˈkɔːdeɪt) //

原脊柱动物,原脊柱类,原脊索动物,原脊柱类动物

Definitions

n.名词 noun

1
Zoology.
- : any of the nonvertebrate chordates, as the tunicates, cephalochordates, and hemichordates.