Tertial Definition
tʉrzhəl
adjective
Designating or of the flight feathers, forming the third row, on the basal part of a bird's wing.
Webster's New World
noun
A tertial feather.
Webster's New World
(ornithology) Any flight feather attached to the humerus (upper arm) of a bird.
Wiktionary
Other Word Forms of Tertial
Noun
Singular:
tertial
Plural:
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