Apterium Definition
aptirēəm
apteria
noun
A bare area of skin between feather tracts on the body of a bird.
Webster's New World
(ornithology) An area of bare (featherless) skin on a bird.
Wiktionary
Other Word Forms of Apterium
Noun
Singular:
apterium
Plural:
apteriaOrigin of Apterium
See aptera.
From Wiktionary
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