Meanings
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1
adj
historical zoology: mammalian; belonging to the class of animals whose females have mammary glands
The nineteenth-century naturalist described the whale as a mammiferous animal.
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2
adj
anatomical or humorous: having mammae or conspicuous breasts
The satirical drawing exaggerated the figure into a conspicuously mammiferous form.
Thesaurus
Etymology
Formed from Latin mamma, meaning breast or teat, the connective -i-, and -ferous, meaning bearing or carrying, from Latin ferre, to bear. Mammiferous therefore literally means breast-bearing; in older zoological writing it served as a synonym of mammalian.