| 单词 | ascidian |
| 释义 | ascidian /euh sid"ee euhn/, Zool. n. 1. any solitary or colonial tunicate of the class Ascidiacea, exhibiting in the larval stage the vertebrate characteristics of a notocord and hollow nerve cord. adj. 2. belonging or pertaining to the class Ascidiacea. [1855-60; < NL Ascidi(um) a tunicate genus (see ASCIDIUM) + -AN] |
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