Pl. -æ. [L., = armpit; dim. of *axula, whence āla: cf. AXLE1. Common in late L. in form ascella.]
1. An armpit.
1616. A. Read, Body of Man, 152. The backe part of the shoulder top, called axilla.
1877. Roberts, Handbk. Med., I. 113. The eruption appears on the borders of the axillæ.
2. = AXIL.
1830. Lindley, Nat. Syst. Bot., 247. Leaf-buds in every axilla.