[ hahy-druh-thawr-aks, -thohr- ]
/ ˌhaɪ drəˈθɔr æks, -ˈθoʊr- /

noun Pathology.

the presence of serous fluid in one or both pleural cavities.

Origin of hydrothorax

First recorded in 1785–95; hydro-1 + thorax

Related forms

hy·dro·tho·rac·ic [hahy-droh-thuh-ras-ik] /ˌhaɪ droʊ θəˈræs ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hydrothorax

British Dictionary definitions for hydrothorax


/ (ˌhaɪdrəʊˈθɔːræks) /


pathol an accumulation of fluid in one or both pleural cavities, often resulting from disease of the heart or kidneys

Derived Forms

hydrothoracic (ˌhaɪdrəʊθɔːˈræsɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for hydrothorax


[ hī′drə-thôrăks′ ]


The accumulation of serous fluid in one or both pleural cavities.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.