opioid
I. adjective Date: 1967 1. possessing some properties characteristic of opiate narcotics but not derived from opium 2. of, involving, or induced by an opioid II. noun Date: 1967 1. any of a group of endogenous neural polypeptides (as an endorphin or enkephalin) that bind especially to opiate receptors and mimic some of the pharmacological properties of opiates — called also opioid peptide 2. a synthetic drug possessing narcotic properties similar to opiates but not derived from opium; broadly opiate 1a

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • opioid — opioíd s. n., pl. opioíde Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic …   Dicționar Român

  • opioid — 1957, from OPIUM (Cf. opium) + OID (Cf. oid) …   Etymology dictionary

  • opioid — [ō′pē oid΄] adj. designating or of a group of natural or synthetic biochemicals, esp. endorphins, that relieve pain in the same way that opiates do n. any such biochemical …   English World dictionary

  • Opioid — Endogenous opioid peptides Skeletal molecular images Adrenorphin Amidorphin Casomorphin …   Wikipedia

  • Opioid — Schlafmohn, Papaver somniferum, aus dessen Milch Opioide gewonnen werden Opioid (von gr. ὄπιον [ˈɔpiɔn] und …   Deutsch Wikipedia

  • Opioid — 1. A synthetic narcotic that resembles the naturally occurring opiates. 2. Any substance that binds to or otherwise affects the opiate receptors on the surface of the cell. * * * Originally, a term denoting synthetic narcotics resembling opiates… …   Medical dictionary

  • opioid — /ˈoʊpiɔɪd/ (say ohpeeoyd) noun 1. an endogenous peptide with pain relieving properties similar to morphine. 2. → opiate (def. 2). –adjective 3. of or relating to such a substance: opioid receptor; opioid analgesic …   Australian English dictionary

  • opioid — I. ˈōpēˌȯid adjective Etymology: opiate (II) + oid 1. : possessing some properties characteristic of opiate narcotics but not derived from opium 2. : of, involving, or induced by an opioid II. noun …   Useful english dictionary

  • opioid — n. any substance similar to opium; natural substance produced in the body in response to stress or pain; synthetic drug with effects similar to those of opium adj. having characteristics similar to that of opium; caused by an opioid peptide,… …   English contemporary dictionary

  • opioid — /oh pee oyd /, n. Biochem, Pharm. 1. any opiumlike substance. 2. any of a group of natural substances, as the endorphins, produced by the body in increased amounts in response to stress and pain. 3. any of several synthetic compounds, as… …   Universalium

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