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WordReference Random House Learner's Dictionary of American English © 2024mam•mal /ˈmæməl/USA pronunciation n. - Zoology[countable] a warm-blooded animal with a backbone, having a covering of hair on some or most of the body, a heart with four chambers, and nourishing its newborn with its milk.
mam•ma•li•an /məˈmeɪliən, -ˈmeɪlyən/USA pronunciation adj. WordReference Random House Unabridged Dictionary of American English © 2024mam•mal (mam′əl),USA pronunciation n. - Mammalsany vertebrate of the class Mammalia, having the body more or less covered with hair, nourishing the young with milk from the mammary glands, and, with the exception of the egg-laying monotremes, giving birth to live young.
- as singular of Neo-Latin Mammalia neuter plural of Late Latin mammālis of the breast. See mamma2, -al1 1820–30
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