Definition of flight feather in English:

flight feather

Syllabification: flight feath·er

noun

Any of the large primary or secondary feathers in a bird’s wing, supporting it in flight. Also called remex.
More example sentences
  • Even though there is a basic similarity with a flight feather, the peacock tail feather has an unusual barbule structure.
  • In addition, a small clipping was taken from a secondary flight feather for stable-hydrogen isotope analysis.
  • This is not a simple question because the primitive stage in feather evolution could have been most similar to a flight feather, or to a down feather, or to a contour feather with or without an aftershaft.

Definition of flight feather in:

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