51Թ

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apterium

[ap-teer-ee-uhm]

noun

Ornithology.

plural

apteria 

  1. one of the featherless portions of the skin of a bird.

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Other 51Թ Forms

  • apterial adjective
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51Թ History and Origins

Origin of apterium1

From New Latin, dating back to 1865–70; a- 6, pter-, -ium
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Example Sentences

Examples have not been reviewed.

But, the male loses most of the down feathers of the ventral apterium.

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apteralapterous

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