'Intoxicant' definitions:

Definition of 'intoxicant'

(from WordNet)
adjective
Causing [syn: intoxicant, intoxicating]
noun
A liquor or brew containing alcohol as the active agent; "alcohol (or drink) ruined him" [syn: alcohol, alcoholic drink, alcoholic beverage, intoxicant, inebriant]
noun
A drug that can produce a state of intoxication

Definition of 'Intoxicant'

From: GCIDE
  • Intoxicant \In*tox"i*cant\, n. That which intoxicates; an intoxicating agent; as, alcohol, opium, and laughing gas are intoxicants. [1913 Webster]