Definition, Meaning & Synonyms

tertial

noun

/ˈtɜːrʃəl/

Definition

Tertial refers to the third-order feathers on a bird’s wing, typically located on the inner part of the wing between the primary and secondary feathers.

Examples

The tertial feathers of the hawk are particularly long and help to stabilize its flight.
Birdwatchers often look for unique patterns in the tertial feathers as a way to identify species.
The tertial coverts can provide some birds with a more streamlined appearance during flight.

Meaning

In ornithology, ‘tertial’ is used to describe a specific classification of wing feathers that contribute to the bird’s flight mechanics, providing essential support and aerodynamic function.