precipitin

precipitin

[pri-sip-i-tin]
noun Immunology.
an antibody that reacts with its specific antigen to form an insoluble precipitate.

Origin:
1895–1900; precipit(ate) + -in2

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Collins
World English Dictionary
precipitin (prɪˈsɪpɪtɪn)
 
n
immunol an antibody that causes precipitation when mixed with its specific antigen

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

precipitin pre·cip·i·tin (prĭ-sĭp'ĭ-tĭn)
n.
An antibody that under suitable conditions combines with and causes a specific soluble antigen to precipitate.

The American Heritage® Stedman's Medical Dictionary
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