titer

titer /ti·ter/ (ti´ter) the quantity of a substance required to react with or to correspond to a given amount of another substance.

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agglutination titer  the highest dilution of a serum which causes clumping of microorganisms or other particulate antigens.

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ti·ter or ti·tre (ttr)

n.

1. The concentration of a substance in solution or the strength of such a substance determined by titration.

2. The minimum volume needed to cause a particular result in titration.

3. The dilution of a serum containing a specific antibody at which the solution retains the minimum level of activity needed to neutralize or precipitate an antigen.

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Titer

A dilution of a substance with an exact known amount of fluid. For example, one part of serum diluted with four parts of saline is a titer of 1:4.

Mentioned in: Antimyocardial Antibody Test, Antinuclear Antibody Test, Cold Agglutinins Test, Cytomegalovirus Antibody Screening Test, Fibrin Split Products, Rubella Test, TORCH Test

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titer

[tī′tər]

Etymology: Fr, titre, to make a standard,

1 the normality of a solution or substance, determined by titration to find the equivalence of two reactants.

2 the extent to which an antibody can be diluted before losing its power to react with a specific antigen.

3 the highest dilution of a serum that causes clumping of bacteria or other visible reaction. Also spelled titre.

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titer (tī´tur),

n the standard amount by volume of a material required to produce a desired reaction with another material.

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titer

the quantity of a substance required to react with or to correspond to a given amount of another substance.

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agglutination titer

the highest dilution of a serum which causes clumping of microorganisms or other particulate antigens.

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titer

Infectious disease Somewhat incorrectly, the term titer refers to the serum concentration of an antibiotic at which it is (bacteri)–cidal or static. See Serum bactericidal titer, Serum inhibitory titer.