[opi.ate] n (15c) 1: a preparation or derivative of opium; broadly: a narcotic or opioid peptide
2: something that induces rest or inaction or quiets uneasiness
[2]opiate adj (1543) 1 a: containing or mixed with opium b: of, relating to, binding, or being an opiate "~ receptors"
2. a: inducing sleep: narcotic b: causing dullness or inaction