Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for Allantoidea from the 1913 edition of Webster's Revised Unabridged Dictionary. Define Allantoidea using one of the most comprehensive free online dictionaries on the web.

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Allantoidea
Part of Speech: noun plural
Results: 1
1. The division of Vertebrata in which the embryo develops an allantois. It includes reptiles, birds, and mammals.
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