lacrimator vs lachrymator

lacrimator and lachrymator both are nouns.

Word	Noun	Adjective	Verb	Adverb
lacrimator	Yes	No	No	No
lachrymator	Yes	No	No	No

As nouns, lacrimator and lachrymator are synonyms defined as:

lacrimator and lachrymator: a gas that makes the eyes fill with tears but does not damage them; used in dispersing crowds

Other synonyms of lacrimator include tear gas, teargas.

lacrimator (noun)	lachrymator (noun)
a gas that makes the eyes fill with tears but does not damage them; used in dispersing crowds	a gas that makes the eyes fill with tears but does not damage them; used in dispersing crowds