opiate

n. any of a variety of natural and semisynthetic compounds derived from opium. They include the alkaloids morphine and codeine and their derivatives (e.g., heroin [diacetylmorphine]). Opiates, together with synthetic compounds having the pharmacological properties of opiates, are known as opioids.

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Psychology term of the day

January 19th 2025

stimulus sampling theory (SST)

Sorry, "stimulus-sampling-theory-sst" is not in the Dictionary of Psychology. Please report to APA if you believe this is an error.