precipitin

[ pri-sip-i-tin ]

/ prɪˈsɪp ɪ tɪn /

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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

Words nearby precipitin

precipitant, precipitate, precipitated, precipitation, precipitation hardening, precipitin, precipitinogen, precipitous, précis, precise, precisely

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use precipitin in a sentence

The antiserum used for the precipitin reaction was obtained by treating a rabbit with human blood serum.
The Organism as a Whole|Jacques Loeb
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
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
Sasaki demonstrated the usefulness of the precipitin technique in distinguishing species of ducks and their hybrids.
Myology and Serology of the Avian Family Fringillidae|William B. Stallcup

The precipitin reaction, however, has never been applied to actual problems in avian taxonomy prior to the present study.
Myology and Serology of the Avian Family Fringillidae|William B. Stallcup

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