What does opiate mean?
An opiate is a medicine that relieves pain or produces sedation and is derived from opium or belongs to a closely related chemical family. The term also has a figurative use: to opiate someone means to calm or pacify them, sometimes with a suggestion that their discomfort has been suppressed rather than resolved. Opiates include morphine and codeine, which are controlled in many countries because of their potential for dependence, tolerance, and withdrawal. In medicine, opiate is sometimes distinguished from the broader term opioid, although the categories overlap. The word is also used more generally for a narcotic or calming substance, especially in political, social, and historical commentary. Understanding opiate therefore requires both a pharmacological sense and awareness of its cultural associations with opium, addiction, and the long history of attempts to regulate pain-relieving drugs.
A pain-relieving or sedative drug derived from opium or chemically related to it; more broadly, a narcotic or soothing substance.
"Morphine is an opiate used to relieve severe pain in carefully monitored patients."
The word can refer narrowly to opium-derived drugs and more broadly to substances with similar effects. It is often discussed in connection with dependence, tolerance, and withdrawal.
To relieve pain or distress with an opiate; figuratively, to calm or pacify someone.
"The medication helped opiate the patient's severe discomfort."
The figurative use is less common and may suggest that someone has been made compliant or emotionally subdued rather than genuinely reassured.
The standard plural is “opiates.”
"The researchers studied the effects of opiates on patients with chronic pain."
The word opiate links modern pain relief to one of humanity's oldest and most consequential drug traditions: the cultivation and use of opium.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of opiate
Opiate entered English in the early 16th century from the Latin opiatus, meaning “prepared from opium.” Its ultimate source is the Greek opion, “opium,” probably related to opis, meaning “milk” or “juice,” an allusion to the milky latex of the opium poppy. The related English word opium comes through Latin from the same Greek source, while opioid developed as a broader pharmacological term. English forms such as opiate, opiates, and opiated continue this inherited connection with opium.
Related word forms
How opiate is actually used
In medical contexts, opiate can refer specifically to opium-derived medications, while opioid is often preferred when discussing the broader therapeutic class. The figurative verb is relatively uncommon and can imply pacification or emotional dulling. The term may also carry connotations of dependence and withdrawal, especially in public discussion of drug use.
Easily confused with opiate
An opiate is a drug derived from or related to opium, while an opioid is the broader class of substances that act on opioid receptors, including some drugs not derived from opium.
Opium is the natural substance obtained from poppy latex, whereas an opiate is a drug made from opium or related to it chemically.