The definition of an animal is a member of the kingdom Animalia, and is typically characterized by a multicellular body, specialized sense organs, voluntary movement, responses to factors in the environment and the ability to acquire and digest food.(noun)
A horse, lion and human are each an example of an animal.
See animal in Webster's New World College Dictionary
Origin: L, living being < anima, animus, breath, air, life principle, soul < IE base *an(e)-, to breathe, exhale > Gr anemos, Sans anilas, wind, breath, OE antha, excitement, anger
See animal in American Heritage Dictionary 4
Origin: Middle English
Origin: , from Latin
Origin: , from animāle
Origin: , neuter of animālis, living
Origin: , from anima, soul; see anə- in Indo-European roots.
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