hydrothorax Meaning, Definition & Usage

  1. noun accumulation of fluid in the pleural cavity (the space between the lungs and the walls of the chest) often resulting from disease of the heart or kidneys

WordNet

Hy`dro*tho"rax noun
Etymology
Hydro-, 1 + thorax.
Definitions
  1. (Med.) An accumulation of serous fluid in the cavity of the chest.

Webster 1913