—n. 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.
—adj. 1. mixed or prepared with opium.
2. inducing sleep; soporific; narcotic.
3. causing dullness or inaction.
—v.t. 1. to subject to an opiate; stupefy.
2. to dull or deaden.