[ pri-sip-i-tin ]
/ prɪˈsɪp ɪ tɪn /

noun Immunology.

an antibody that reacts with its specific antigen to form an insoluble precipitate.


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Origin of precipitin

First recorded in 1895–1900; precipit(ate) + -in2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for precipitin

British Dictionary definitions for precipitin

/ (prɪˈsɪpɪtɪn) /


immunol an antibody that causes precipitation when mixed with its specific antigen
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

Medical definitions for precipitin

[ prĭ-sĭpĭ-tĭn ]


An antibody that under suitable conditions combines with and causes a specific soluble antigen to precipitate.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.