1. 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.

[French titre, from Old French title, title. See title.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.