Opioid
Last Updated: January 2, 2026 at 12:30 PM
Scrabble:9 ptsWWF:10 pts6 letters
Definition of Opioid
Noun
- A substance that has effects similar to opium: Any of the natural substances, such as an endorphin, released in the body in response to pain; an endogenous opioid. Any of a group of synthetic compounds that exhibit similarities to the opium alkaloids that occur in nature.
- Any of the natural substances, such as an endorphin, released in the body in response to pain; an endogenous opioid.
- Any of a group of synthetic compounds that exhibit similarities to the opium alkaloids that occur in nature.