WordReference Random House Unabridged Dictionary of American English © 2026
tho•ra•cen•te•sis
(thôr′ə sen tē′sis, thōr′-),USA pronunciation n., pl. -ses (-sēz).USA pronunciation
- Medicine, Surgeryinsertion of a hollow needle or similar instrument into the pleural cavity of the chest in order to drain pleural fluid.
- thora(c)- + centesis 1855–60