precipitin

[ pri-sip-i-tin ]

/ prɪˈsɪp ɪ tɪn /

noun Immunology.

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

Nearby words

precipitant, precipitate, precipitate labor, precipitation, precipitation hardening, precipitin, precipitin test, precipitinogen, precipitous, precis, precise

Origin of precipitin

First recorded in 1895–1900; precipit(ate) + -in²

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for precipitin

Graphs of precipitin reactions illustrating serological relationships.
Myology and Serology of the Avian Family Fringillidae|William B. Stallcup
The antiserum used for the precipitin reaction was obtained by treating a rabbit with human blood serum.
The Organism as a Whole|Jacques Loeb
The precipitin reaction is the most successful of the serological techniques thus far devised for systematic comparisons.
Myology and Serology of the Avian Family Fringillidae|William B. Stallcup
Some precipitin tests and preliminary remarks on the systematic relationships of four South American families of frogs.
The Genera of Phyllomedusine Frogs (Anura Hylidae)|William E. Duellman

Now all these specific reactions, the precipitin reaction as well as the anaphylactic reaction, can be called forth by proteins.
The Organism as a Whole|Jacques Loeb

British Dictionary definitions for precipitin

precipitin

/ (prɪˈsɪpɪtɪn) /

noun

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

Medicine definitions for precipitin

precipitin

[ prĭ-sĭp′ĭ-tĭn ]

n.

An antibody that under suitable conditions combines with and causes a specific soluble antigen to precipitate.