apteria
- plural of apterium.
Example Sentences
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It is interesting to note that the feathers on the bodies of the flying birds are arranged in tracts, with intervals here and there of quite, or almost, bare skin, called "apteria."
From Our Bird Comrades by Keyser, Leander S. (Leander Sylvester)
Ciconiae.—Zoophagous, nidicolous, waders; with simple hypotarsus and without cervical apteria.
From Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" by Various
Nidifugous, waders; with simple hypotarsus and without cervical apteria.
From Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" by Various
Ardeae.—Piscivorous, nidicolous, waders; with complicated hypotarsus and with long cervical apteria.
From Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" by Various
The feathers of birds are not uniformly distributed over the body, but grow only along certain definite tracts known as pterylae, leaving bare spaces or apteria.
From Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 2 "Fairbanks, Erastus" to "Fens" by Various
