Definitions from Wiktionary (opioid)

▸ noun:  A substance that has effects similar to opium:
▸ noun:  (physiology) Any of the natural substances, such as an endorphin, released in the body in response to pain; an endogenous opioid.
▸ noun:  (pharmacology) Any of a group of synthetic compounds that exhibit similarities to the opium alkaloids that occur in nature.







▸ Words similar to opioid
▸ Usage examples for opioid

▸ Idioms related to opioid
▸ Wikipedia articles (New!)
▸ Popular adjectives describing opioid
▸ Words that often appear near opioid
▸ Rhymes of opioid

▸ Invented words related to opioid