protochordate / ˌproʊ toʊˈkɔr deɪt /

🎓大学词汇原脊柱动物原脊柱类原脊索动物原脊柱类动物

protochordate 的定义

n. 名词 noun

Zoology.

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