| 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. |