Mammal
A Dictionary of Scientific Terms · 1927 · p. 3
One of the cla of animals (Mammal i a) which are vertebrate and which are distinguished by suckling their young.
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An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
The Century Dictionary and Cyclopedia (1897)
Chamber's Etymological of the English Language (1895)
An Illustrated Encyclopedic Medical Dictionary (1893)
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