Definitions for "Axilla"
The armpit, or the cavity beneath the junction of the arm and shoulder.
the hollow under the arm where it is joined to the shoulder; "they were up to their armpits in water"
The armpit. Lymph glands in the armpit are called the axillary nodes. Certain cancer, such as breast cancer, spread to the axillary nodes. Axillary lymph nodes are usually removed by surgery to determine if breast cancer is present and if treatment with chemotherapy is necessary.
(pl., axillae), in some Symphyta and Chalcididae (Hymenoptera), posterior portion of mesoscutum separated off by transcutal articulation (Gauld and Bolton); in many Apocrita (Hymenoptera), one of 2 small posterolateral plates formed from the mesoscutum, separated from rest of scutum by transcutal articulation (T-B, after MacGillivray; Riek, in CSIRO; Gibson; Gauld and Bolton).
In groups with a transscutal articulation, posterolateral portion of the mesoscutum separated from the mesoscutum lateral to the scutellum; usually triangular (see also scutum).
(pl., axillae) Usually paired, often triangular regions posterior to the mesoscutum that usually appear as anterolateral regions of the scutellum; the term is usually used for the entire structure but each axilla has both a dorsal surface and a lateral panel of the axilla. [drawing] [photo] [photo
the under arm area, the arm pit - this area is one of the fours incision sites used by plastic surgeons. plural: axillae.
the region between the arm and the thoracic wall
An axil.