[ tahy-ter, tee- ]

nounChemistry, Medicine/Medical.
  1. the strength of a solution as determined by titration with a standard substance.

  2. the concentration of a substance in a given sample as determined by titration.

Origin of titer

1830–40; <French titre title, qualification, fineness of alloyed gold or silver <Latin titulustitle
  • Also especially British, ti·tre .

Words Nearby titer

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use titer in a sentence

  • Those especially important are the acid value, percentage unsaponifiable matter and titer test.

    Soap-Making Manual | E. G. Thomssen
  • In bleaching palm oil for 30 hours with air the free fatty acid content rose and titer decreased considerably.

    Soap-Making Manual | E. G. Thomssen
  • A titer lower than 28 will prevent the finished kettle of soap from being capable of later taking up the filling materials.

    Soap-Making Manual | E. G. Thomssen

British Dictionary definitions for titer


/ (ˈtaɪtə, ˈtiː-) /

  1. the usual US spelling of titre

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for titer


[ tər ]

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

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

  1. The concentration of antibodies present in the highest dilution of a serum sample at which visible clumps with an appropriate antigen are formed.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.