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  1. the science dealing with the immunological properties and actions of serum.

Origin of serology

First recorded in 1905–10; sero- + -logy
Related formsse·ro·log·ic [seer-uh-loj-ik] /ˌsɪər əˈlɒdʒ ɪk/, se·ro·log·i·cal, adjectivese·ro·log·i·cal·ly, adverbse·rol·o·gist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples

British Dictionary definitions for serology


  1. the science concerned with serums
Derived Formsserologic (ˌsɪərəˈlɒdʒɪk) or serological, adjectiveserologist, noun
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 serology


1907, from sero-, comb. form of serum, + -ology. Related: Serological; serologist.

Online Etymology Dictionary, © 2010 Douglas Harper

serology in Medicine


  1. The science that deals with the properties and reactions of serums, especially blood serum.
  2. The characteristics of a disease or an organism shown by study of blood serums.
Related formsse′ro•logic null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.