Definition of axillae:
(n) :
The armpit, or the cavity beneath the junction of the arm and shoulder.
(n) :
(entomology) The area that is located posterior to the transscutal articulation and anterior to the scutoscutellar suture.
(n) :
(botany, uncommon) Alternative form of axil. [(botany) The angle or point of divergence between the upper side of a branch, leaf, or petiole, and the stem or branch from which it springs.]