OPIOID

Etymology

Noun

opioid (plural opioids)

A substance that has effects similar to opium.

(physiology) Any of the natural substances, such as an endorphin, released in the body in response to pain.

(pharmacology) Any of a group of synthetic compounds that exhibit similarities to the opium alkaloids that occur in nature.

Hyponyms

• opiate

Source: Wiktionary

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