| 释义 |
ter·tial
I. \ˈtərshəl\ adjective
Etymology: Latin tertius third + English -al; from the fact that tertials form the third row of feathers
1. : of, relating to, or constituting the flight feathers borne on the basal joint of a bird's wing — compare primary 2c
2. : of, relating to, or constituting some of the innermost secondaries when different from the others or the scapular feathers — not used technically
II. noun
(-s)
: a tertial feather |