opiate

noun

1. a drug containing opium or its derivatives, used in medicine for inducing sleep and relieving pain.
2. any sedative, soporific, or narcotic.
3. anything that causes dullness or inaction or that soothes the feelings.

adjective

4. mixed or prepared with opium.
5. inducing sleep; soporific; narcotic.
6. causing dullness or inaction.

verb (used with object), o·pi·at·ed, o·pi·at·ing.

7. to subject to an opiate; stupefy.
8. to dull or deaden.

noun (ˈəʊpɪɪt)

1. any of various narcotic drugs, such as morphine and heroin, that act on opioid receptors
2. any other narcotic or sedative drug
3. something that soothes, deadens, or induces sleep

adjective (ˈəʊpɪɪt)

4. containing or consisting of opium
5. inducing relaxation; soporific

verb (ˈəʊpɪˌeɪt) (tr) rare

6. to treat with an opiate
7. to dull or deaden

n.“medicine containing opium,” early 15c., from Medieval Latin opiatus, from Latin opium (see opium). Figurative sense of “anything that dulls the feelings” is from 1640s. From 1540s in English as an adjective, “made with or containing opium.” n.

1. Any of various sedative narcotics that contain opium or one or more of its natural or synthetic derivatives.
2. A drug, hormone, or other chemical substance that has sedative or narcotic effects similar to those containing opium or its derivatives.opioid

adj.

1. Of or containing opium or any of its derivatives.
2. Resembling opium or its derivatives in activity.
3. Inducing sleep or sedation; soporific.

v.

1. To subject to the action of an opiate.