mammalian

UK: məˈmeɪ.li.ən | US: məˈmeɪ.li.ən

Definition

  1. adj. relating to mammals (warm-blooded vertebrates with hair and mammary glands)

  2. n. (rare) a member of the mammalian class

Structure
mammal <breast>ian <relating to>
Etymology

The word "mammalian" derives from "mammal," coined by Carl Linnaeus in 1758 from Latin mamma (breast), referencing mammary glands unique to this animal class. The suffix -ian (from Latin -ianus) denotes relation, forming an adjective meaning "pertaining to mammals." The term reflects biological classification logic, emphasizing lactation as a defining trait.

Examples

  1. The mammalian brain exhibits complex cognitive functions.

  2. This fossil provides evidence of early mammalian evolution.

  3. Whales are fully aquatic yet retain mammalian characteristics.

  4. The zoo’s new exhibit focuses on endangered mammalian species.

  5. Researchers study mammalian immune responses to develop vaccines.