N any animal of the phylum Chordata, including the vertebrates and protochordates, characterized by a notochord, dorsal tubular nerve cord, and pharyngeal gill slits 脊索动物
ADJ of, relating to, or belonging to the Chordata 脊索动物的
Chordates are bilaterally symmetrical, triploblastic, segmented coelomates.
脊索是双边对称的，三叶裂的，分段的腔壁。
Most chordates have a high-pressure, closed circulation with a ventral heart.
大多数脊索动物循环具有高压的、封闭的循环系统，心脏位于腹面。
Chordates are bilaterally symmetrical, triploblastic, segmented coelomates which demonstrate a deuterostomic pattern of early embryonic development.
脊索动物两侧对称、三胚层，分节的体腔，在胚胎发育的早期过程中，显示为后口类型。
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