rectrix
noun
one of the tail feathers of a bird controlling direction during flight.
rectrices
-
pluralof rectrix.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The tertiaries and rectrices are tipped with pale rufous grey.
From Argentine Ornithology, Volume I (of 2) A descriptive catalogue of the birds of the Argentine Republic. by W. H. (William Henry) Hudson
Many specimens show yellow remiges and rectrices, and are perhaps hybrids with the species auratus.
From A Check-List of the Birds of Idaho by M. Dale Arvey
Bill flattened and obtuse; no hind toe; tarsi unarmed; wings very short; rectrices sixteen to twenty.
From British Birds in their Haunts by Rev. C. A. Johns
Caudal vertebrae more than thirteen, without a pygostyle, but with about twelve pairs of rectrices.
From Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" by Various
Female: above brown, wings varied with white; beneath white; breast-band pale brown; tail with the two outer rectrices slightly elongated and denuded, terminated with spatulations on the inner vane.
From Argentine Ornithology, Volume I (of 2) A descriptive catalogue of the birds of the Argentine Republic. by W. H. (William Henry) Hudson
