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Webster 1913 Edition

Tertial

Ter′tial

,

Adj.

&

Noun.

[From L.

tertius

third, the tertial feathers being feathers of the third row. See

.]

(Zool.)

Same as

.

Definition 2024

tertial

tertial

English

Noun

tertial ‎(plural tertials)

(ornithology) Any flight feather attached to the humerus (upper arm) of a bird.