单词 | allantoidian |
释义 | allantoidian, a. and n. Zool.|ælænˈtɔɪdɪən| [ad. Fr. allantoïdien: see prec. and -ian.] A. adj. Having the fœtus furnished with an allantois. B. n. An animal whose fœtus is so furnished.
1861Hulme Moquin-Tandon's Med. Zool. ii. ii. 62 Allantoidians = Mammalia, Aves, Reptilia. |

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