noun Chemical Warfare.
a chemical agent causing nose irritation, coughing, etc.
Origin of sternutator
First recorded in 1920–25; back formation from sternutatory
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a substance that causes sneezing, coughing, and tears; used 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