‖An′al‐lan‐toid″e‐a (�), n. pl. [Gr. αν̓ priv. + E. allantoidea.] (Zoöl.) The division of Vertebrata in which no allantois is developed. It includes amphibians, fishes, and lower forms.
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Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.