mesallantoid, a. rare.
(mɛsəˈlæntɔɪd)
[f. Gr. µέσ-ος middle + allantoid.]
Having an allantois of intermediate size. (Cf. megallantoid, micrallantoid.)
| 1877 W. Turner Hum. Anat. ii. 869 M. H. Milne-Edwards..has placed the Carnivora and Pinnipedia..in a Mesallantoid legion of mammals. |