axillary fossa(n = noun.body) armpit, axilla, axillary cavity - the hollow under the arm where it is joined to the shoulder; "they were up to their armpits in water"
is a kind of bodily cavity, cavity, cavum
is a part of shoulder
has parts: arteria axillaris, axillary artery

axillary, axillary artery, axillary cavity, axillary node, axillary vein, epigastric fossa, fossa, fossa cat, fossa fossa, genus fossa, glenoid fossa, mandibular fossa