Wordnet 3.0
NOUN (1)
1.
a gas that makes the eyes fill with tears but does not damage them;
used in dispersing crowds;
[syn: tear gas, teargas, lacrimator, lachrymator]
The Collaborative International Dictionary of English v.0.48:
lacrimator \lacrimator\ n.
a chemical substance that causes tears to flow; same as
lachrymator.
Syn: lachrymator.
[PJC]
WordNet (r) 3.0 (2006):
lacrimator
n 1: a gas that makes the eyes fill with tears but does not
damage them; used in dispersing crowds [syn: tear gas,
teargas, lacrimator, lachrymator]