the small depression beneath the arm where it joins the shoulder
Technical name: axillaan extremely unpleasant place: the armpit of the Mediterranean
WordReference Random House Learner's Dictionary of American English © 2026
arm•pit /ˈɑrmˌpɪt/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- Anatomythe hollow place under the arm at the shoulder.
arm•pit
(ärm′pit′),USA pronunciation n.
- Anatomythe hollow under the arm at the shoulder;
axilla.
- 1300–50; Middle English; see arm1, pit1
Collins Concise English Dictionary © HarperCollins Publishers::
'armpit' also found in these entries (note: many are not synonyms or translations):
Hodgkin's disease
- armhole
- axil
- axilla
- axillary
- besague
- bubo
- clinical thermometer
- crutch
- intertrigo
- oxter
- palette
- roundel
- underarm
- à la