ALLEN'S RULE


Meaning of ALLEN'S RULE in English

noun

Usage: usually capitalized A

Etymology: after Joel A. Allen

: a statement in zoology: protruding body parts (as ears, tail, legs, bill) of warm-blooded animals are relatively shorter in cooler than in warmer parts of the range

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.