lacrimator

synonym: lachrymator
https://doi.org/10.1351/goldbook.15847
Substance that irritates the eyes and causes the production of tears or increases the flow of tears.
Source:
PAC, 2007, 79, 1153. (Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)) on page 1249 [Terms] [Paper]