单词 | cephalochordate |
释义 | cephalochordate (extremely rare) n WORD FAMILY cephalochordate n fish-like animals having a notochord rather than a true spinal column Hypo|Hyper amphioxus, lancelet small translucent lancet-shaped burrowing marine animal; primitive forerunner of the vertebrates chordate any animal of the phylum Chordata having a notochord or spinal column |
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