[muh-mey-lee-uh n, -meyl-yuh n]


an animal of the class Mammalia; mammal.


belonging or pertaining to the class Mammalia; characteristic of mammals.

Origin of mammalian

1825–35; < New Latin Mammali(a) (see mammal) + -an
Related formsmam·mal·i·ty [muh-mal-i-tee] /məˈmæl ɪ ti/, nounnon·mam·ma·li·an, noun, adjectiveun·mam·ma·li·an, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for non-mammalian

Historical Examples of non-mammalian

  • Certain unknown natural forces, however, might have made no more of us than of non-mammalian and less highly organized creatures.

    Darkness and Dawn

    George Allan England

Word Origin and History for non-mammalian



1813, from mammal + -ian. As a noun, from 1835.

Online Etymology Dictionary, © 2010 Douglas Harper