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lachrymogenic

lachrymogenic, a.
  (ˌlækrɪməʊˈdʒɛnɪk)
  [f. lachrymation + -o + -genic.]
  Giving rise to lachrymation.

1921 Chem. Abstr. XV. 398 (heading) Estimation of the lachrymogenic power of irradiating substances by the threshold method. 1971 Jrnl. Agric. & Food Chem. XIX. 269/2 Thioethanol, thioacetone, thiobutanal, and thiohexanal S-oxides were also synthesized and their lachrymogenic properties were evaluated.

Oxford English Dictionary

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