precipitin

[ pri-sip-i-tin ]

noun

, Immunology.

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

precipitin

/ prɪˈsɪpɪtɪn /

noun

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

Word History and Origins

Origin of precipitin¹

First recorded in 1895–1900; precipit(ate) + -in ²

Example Sentences

Graphs of precipitin reactions illustrating effects of formalin on antigenicity and reactivity of the extracts.

From Project Gutenberg

The precipitin test depends on a somewhat analogous reaction.

From Project Gutenberg

Some precipitin tests and preliminary remarks on the systematic relationships of four South American families of frogs.

From Project Gutenberg

No white precipitin, as it is called, would form.

From Project Gutenberg

The precipitin reaction is the most successful of the serological techniques thus far devised for systematic comparisons.

From Project Gutenberg