Medical term:
xenobiotics
xenobiotic
[ze″no-bi-ot´ik]a chemical compound foreign to a given biological system. With respect to animals and humans, xenobiotics include drugs, drug metabolites, and environmental compounds such as pollutants that are not produced by the body. In the environment, xenobiotics include synthetic pesticides, herbicides, and industrial pollutants that would not be found in nature.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
xen·o·bi·ot·ic
(zen'ō-bī-ot'ik),1. A pharmacologically, endocrinologically, or toxicologically active substance not endogenously produced and therefore foreign to an organism.
2. Pertaining to association of two animal species, usually insects, in the absence of a dependency relationship, as opposed to parasitism.
[xeno- + G. bios, life + -ic]
Farlex Partner Medical Dictionary © Farlex 2012
xenobiotic
(zĕn′ə-bī-ŏt′ĭk, zē′nə-)adj.
Not a natural component of a particular organism or biological system. Used of chemical compounds.
n.
A xenobiotic chemical, such as a pesticide.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
xen·o·bi·ot·ic
(zen'ō-bī-ot'ik)A pharmacologically, endocrinologically, or toxicologically active substance not endogenously produced and therefore foreign to an organism.
[xeno- + G. bios, life + -ic]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
xenobiotic
a chemically synthesized compound that is found in the natural environment, but that does not normally occur in nature. Examples include pesticides, dyes, industrial pollutants. Such compounds may be structurally related to natural compounds and may be degraded slowly by the ENZYMES that degrade the natural counterparts. Others may be structurally unrelated to any known natural compound and their degradation occurs very slowly if at all. Xenobiotics generally persist in environments where microorganisms capable of their degradation do not naturally occur.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
xen·o·bi·ot·ic
(zen'ō-bī-ot'ik)Pharmacologically, endocrinologically, or toxicologically active substance not endogenously produced and therefore foreign to an organism.
[xeno- + G. bios, life + -ic]
Medical Dictionary for the Dental Professions © Farlex 2012
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