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Definition of Titre

Titre: Variant spelling of "titer" -- the degree of dilution of a substance such as an antibody, reflecting the strength of the solution.

Americans spell it "titer" while the English spell it "titre," French for "title," derived from the Latin "titulus," an inscription or label. The "titre" was evidence of the fineness of an alloy of gold or silver.

Source: MedTerms™ Medical Dictionary
Last Editorial Review: 8/28/2013

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