Any substance that does not occur naturally but that will affect living systems.

Dictionary of molecular biology. 2004.

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  • xenobiotic — xenobiótic adj. m., pl. xenobiótici; f. sg. xenobiótică, pl. xenobiótice Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic …   Dicționar Român

  • xenobiotic — [zen΄ō bī ät′ik, zē΄nōbī ät′ik] adj. [ XENO (sense 2) + BIOTIC] designating or of a chemical substance that is foreign, and usually harmful, to living organisms n. such a substance …   English World dictionary

  • Xenobiotic — A xenobiotic is a chemical which is found in an organism but which is not normally produced or expected to be present in it. It can also cover substances which are present in much higher concentrations than are usual. Specifically, drugs such as… …   Wikipedia

  • xenobiotic — noun Date: 1965 a chemical compound (as a drug, pesticide, or carcinogen) that is foreign to a living organism • xenobiotic adjective …   New Collegiate Dictionary

  • Xenobiotic — Natural substances that are foreign to the body. * * * 1. A pharmacologically, endocrinologically, or toxicologically active substance not endogenously produced and therefore foreign to an organism. 2. Pertaining to association of two animal… …   Medical dictionary

  • xenobiotic — ˌzenō, ˌzē ˌ noun Etymology: xen + biotic : a chemical compound (as a drug, pesticide, or carcinogen) that is foreign to a living organism • xenobiotic adjective …   Useful english dictionary

  • Xenobiotic metabolism — is the set of metabolic pathways that modify the chemical structure of xenobiotics, which are compounds foreign to an organism s normal biochemistry, such as drugs and poisons. These pathways are a form of biotransformation present in all major… …   Wikipedia

  • Xenobiotic-transporting ATPase — In enzymology, a xenobiotic transporting ATPase (EC number| is an enzyme that catalyzes the chemical reaction:ATP + H2O + xenobioticin ightleftharpoons ADP + phosphate + xenobioticoutThe 3 substrates of this enzyme are ATP, H2O, and… …   Wikipedia

  • xenobiotic — /zen euh buy ot ik, bee , zee neuh /, n. a chemical or substance that is foreign to an organism or biological system. [1915 20; XENO + BIOTIC] * * * …   Universalium

  • xenobiotic — 1. adjective a) Of or pertaining to xenobiosis. b) Relating to a substance foreign to the body or ecological system. 2. noun Any foreign compound not produced by an organisms metabolism Se …   Wiktionary

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