serous fluid

noun

variants or less commonly serosal fluid

plural serous fluids also serosal fluids

: a clear to pale yellow watery fluid that is found in the body especially in the spaces between organs and the membranes which line or enclose them (such as the heart and pericardium or abdomen and peritoneum) and that when occurring in large quantities is indicative of a pathological condition (such as cirrhosis or heart failure) or surgical complication

Word History

First Known Use

1752, in the meaning defined above