• synonyms


[seer-uh s]
See more synonyms on Thesaurus.com
  1. resembling serum; of a watery nature.
  2. containing or secreting serum.
  3. of, relating to, or characterized by serum.

Origin of serous

1585–95; < Medieval Latin serōsus; see serum, -ous
Related formsse·ros·i·ty [si-ros-i-tee] /sɪˈrɒs ɪ ti/, se·rous·ness, nounnon·se·rous, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for serosity

Historical Examples

  • If, however, the fluid is a serosity, we prefer to remove it by punctures with a very small trocar.

    Special Report on Diseases of the Horse

    United States Department of Agriculture

  • The grand causa mortis amongst the human family was serosity.

British Dictionary definitions for serosity


  1. of, resembling, producing, or containing serum
Derived Formsserosity (sɪˈrɒsɪtɪ) or serousness, noun

Word Origin

C16: from Latin serōsus, from serum
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

Word Origin and History for serosity



early 15c., "watery," later "of or pertaining to serum" (16c.), from French séreux (16c.) and directly from Latin serosus, from serum "watery fluid, whey" (see serum). Related: Serosity.

Online Etymology Dictionary, © 2010 Douglas Harper

serosity in Medicine


  1. A serous fluid or a serum.
  2. The condition of being serous.
  3. The serous quality of a liquid.


  1. Containing, secreting, or resembling serum.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.