titer
Americannoun
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the strength of a solution as determined by titration with a standard substance.
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the concentration of a substance in a given sample as determined by titration.
noun
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The concentration of a substance in solution or the strength of such a substance as determined by titration.
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The minimum volume of a solution needed to cause a particular result in titration.
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The concentration of antibodies present in the highest dilution of a serum sample at which visible clumps with an appropriate antigen are formed.
Etymology
Origin of titer
1830–40; < French titre title, qualification, fineness of alloyed gold or silver < Latin titulus title
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
You might have heard about a titer test, which looks at the amount of antibodies in a person’s blood in order to confirm that they are immune.
From Slate ● Mar. 12, 2025
A: In our model, we give it at a very low titer and it causes a very significant, very itchy, full body rash.
From Science Magazine ● Oct. 26, 2023
“Omicron BA.2 is not neutralized with detectable titer by any of the therapeutic monoclonal antibodies, including sotrovimab,” researchers from the NYU Grossman School of Medicine said in the study, which hasn’t been peer-reviewed.
From Washington Times ● Feb. 21, 2022
McFarlane said her test results, which reported an antibody titer of 48.4U/mL, were too modest for her to feel protected from COVID-19, especially if she was to be seeing her five and eight-year-old grandchildren.
From Salon ● Aug. 13, 2021
The method of taking the titer, including handling the thermometer, to be followed is the same as that described in the standard method.
From Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant. by E. G. Thomssen
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
