lacrimator

noun

lac·​ri·​ma·​tor ˈla-krə-ˌmā-tər 

variants or lachrymator

: a tear-producing substance (such as tear gas)

Word History

Etymology

Latin lacrimare to weep, from lacrima tear — more at lachrymal

First Known Use

1918, in the meaning defined above

Medical Definition

lacrimator

noun

lac·​ri·​ma·​tor

variants also lachrymator

ˈlak-rə-ˌmāt-ər 

: a tear-producing substance (as tear gas)