Webster's Revised Unabridged Dictionary · 1913

Lachrymatory

Lachrymatory , noun

[Compare French lacrymatoire.]

(Antiquities) A “tear-bottle;” a narrow-necked vessel found in sepulchers of the ancient Romans; -- so called from a former notion that the tears of the deceased person's friends were collected in it. Called also lachrymal or lacrymal.

lachrymatory , adjective

Relating to or inducing tears; -- especially of chemical substances.