something, as a chemical spray, that incapacitates an individual: to use incapacitants for riot control.
Origin of incapacitant
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a substance that can temporarily incapacitate a person, used esp as a weapon in chemical warfare
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