英语词汇“protopterygian”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	protopterygian
释义	protopterygian, a. Ichth.\|ˌprəʊtəʊptəˈrɪdʒɪən\| [f. Gr. πρωτο- proto- + πτερύγιον fin + -an.] Introduced by Ryder to designate the first-fin stage when the embryonic fin rays first appear. 1884Rep. U.S. Comm. Fish. (1886) 987 The protopterygian stage of development of the permanent fin-rays.
随便看	convolute convoluted convolution convolutionary convolutive convoluto- convolve convolvine convolvula convolvulaceous convolvulic convolvulin convolvulus convoy convoyance convoyer convulnerate convulsant convulse convulsed convulsedly convulsibility convulsible convulsific convulsing

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