| 单词 |
anallantoidian |
| 释义 |
anallantoidian, a. and n. Zool.|ˌænælænˈtɔɪdɪən| [f. an- 10 + allantoidian.] A. adj. Having no allantois in the embryo, as the lower vertebrates. B. n. An animal thus characterized. (Opp. to allantoidian.)
1861R. T. Hulme tr. Moquin-Tandon's Elem. Med Zool. ii. 11. 62 Anallantoidians—Batrachia, Pisces, Myelairia. |
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