armpit

[ ahrm-pit ]
/ ˈɑrmˌpɪt /

noun

the hollow under the arm at the shoulder; axilla.

Origin of armpit

Middle English word dating back to 1300–50; see origin at arm1, pit1

Example sentences from the Web for armpit

British Dictionary definitions for armpit

armpit
/ (ˈɑːmˌpɪt) /

noun

the small depression beneath the arm where it joins the shoulder Technical name: axilla Related adjective: axillary
slang an extremely unpleasant place the armpit of the Mediterranean

Medical definitions for armpit

armpit
[ ärmpĭt′ ]

n.

The hollow under the upper part of the arm below the shoulder joint, bounded by the pectoralis major, the latissimus dorsi, the anterior serratus muscles, and the humerus, and containing the axillary artery and vein, the infraclavicular part of the brachial plexus, lymph nodes and vessels, and areolar tissue. axilla axillary fossa