adjective

Relating to the armpit or a corresponding part.

enlargement of the axillary lymph nodes

noun

Feathers growing from the axilla.

The characters used to distinguish N. w. immaculatus (larger, blacker, lacking white mottling on the underparts and white barring in the remiges, axillaries, and wing coverts; Mayr 1949) are negated by the variation in our specimens.