The substance that quantitatively reacts with the analyte in a titration. The titrant is usually a standard solution added carefully to the analyte until the reaction is complete. The amount of analyte is calculated from the volume of titrant required for complete reaction.
In chemistry, the solution that is added (titrated with) in a titration. ... (05 Mar 2000) ... 
Type: Term Pronunciation: tī′trănt Definitions: 1. In chemistry, the solution that is added (titrated with) in a titration.