apterium

English

Etymology

See Latin aptera, a- + Ancient Greek πτερόν (pterón, wing) + -ium.

Noun

apterium (plural apteria)

  1. (ornithology) An area of bare (featherless) skin on a bird.
    • 1918, American Ornithologists' Union, The Auk:
      The two halves of the lower cervical tract are still separated by an apterium 4 mm. wide, as in the young bird, but contour feathers are now present on the chin and upper throat, so that they are united at their upper ends.

Antonyms

Translations

This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.