(organic chemistry) An alkaloid found in small quantities in opium, identical with narcotine.

(organic chemistry) An organic acid obtained by the oxidation of narcotine.

(historical) An Ancient Roman religious festival held on August 25 in honor of Ops or Opis ("Plenty"), a goddess of agricultural resources and wealth.

A drug for the treatment of Parkinson's disease.

Of or relating to opiates.

Relating to, resembling, or containing opium. / (pharmacology) Soporific; inducing sleep or sedation. / Deadening; causing apathy or dullness.

(pharmacology) A drug, hormone or other substance derived from or related to opium. / Something that dulls the senses and induces a false and unrealistic sense of contentment.

(transitive) To treat with an opiate drug.

Third-person singular simple present indicative form of opiate

plural of opiate