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Synonyms

mammals

Cultural  

  1. A class of vertebrates characterized by the production of milk by the females and in most cases, by a hairy body covering. Most mammals give live birth to their young. Human beings are mammals.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Mammals are not the only creatures that take in alcohol as part of normal feeding.

From Science Daily • Dec. 1, 2025

Mammals begins on BBC One at 19:00 BST on Sunday.

From BBC • Mar. 28, 2024

Mammals change the game by giving birth to live young and feeding them fatty, sugary milk as they get on their feet.

From New York Times • Mar. 7, 2024

Mammals aren’t the only animals that nurse their young.

From Science Magazine • Mar. 6, 2024

Mammals characteristically nuzzle, fondle, hug, caress, pet, groom and love their young, behavior essentially unknown among the reptiles.

From "Cosmos" by Carl Sagan

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.