Titer

Level or amount.


Concentration of a solution; in bacteriology, measurement of the number of organisms (bacterial titer) or viruses (viral titer) present, or the level of an antibody in the blood (antibody titer).


A standardized measurement of the concentration of a substance in a solution; often used to measure the presence of immune response to vaccinations.


The strength, or concentration, of a substance in fluid, such as the lowest dilution of serum at which antibody is still present.


A special X-ray technique that visualizes layers of tissues.


The extent to which a sample of blood serum containing antibody can be diluted before losing its ability to cause agglutination of the relevant antigen. It is used as a measure of the amount of antibody in the serum.


Standard of strength per volume of a volumetric test solution.


The process of diluting a substance with a precisely measured quantity of fluid. For instance, when one part of serum is mixed with four parts of saline, it yields a titer of 1:4.


The amount of a substance needed to interact with a specific volume of another substance, or the quantity of one substance necessary to match a given quantity of another substance.


The amount of a substance needed to trigger a reaction with a specified volume of another substance, or the quantity of one substance necessary to match a given amount of another substance.


 


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