| PAH | para-aminohippurate; phenylalanine hydrolase; polycyclic aromatic hydrocarbon; predicted adult heigh... |
|---|---|
| HC | hair cell; hairy cell; handicapped; head circumference; head compression; health care; healthy contr... |
| LHI | lipid hydrocarbon inclusion |
| PCH | paroxysmal cold hemoglobinuria; polycyclic hydrocarbon |
| PNH | paroxysmal nocturnal hemoglobinuria; polynuclear hydrocarbon |
| AH | aromatic hydrocarbon |
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| nitroPAH | Nitrated polycyclic aromatic hydrocarbon |
| PAH | Polycyclic Aromatic Hydrocarbon |
| PAH | Polynuclear aromatic hydrocarbon |
| AhR | aromatic hydrocarbon receptor |
| aryl hydrocarbon hydroxylases | <enzyme> A group of cytochrome p-450 (haem-thiolate) proteins which utilise reduced flavin or flavoprotein as one donor and incorporate one atom of oxygen. They act on many aromatic compounds. They are a component part of the mixed-function oxidase system and are important for the oxidation of many drugs and toxins such as phenobarbital, carcinogens, and insecticide. These enzymes are considered to be an aspect of EC 1.14.14.1. Registry number: EC 1.14.14.- (12 Dec 1998) |
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| receptors, aryl hydrocarbon | Cytoplasmic proteins that bind certain aryl hydrocarbons, translocate to the nucleus, and activate transcription of particular DNA segments. Ah receptors are identified by their high-affinity binding to several carcinogenic or teratogenic environmental chemicals including polycyclic aromatic hydrocarbons found in cigarette smoke and smog, heterocyclic amines found in cooked foods, and halogenated hydrocarbons including dioxins and polychlorinated biphenyls. No endogenous ligand has been identified, but an unknown natural messenger with a role in cell differentiation and development is suspected. (12 Dec 1998) |
| chlorinated hydrocarbon | A molecules which is almost entirely carbon and hydrogen, but has had at least one chlorine atom introduced to it that has replaced one of the hydrogen atoms. (09 Oct 1997) |
| saturated hydrocarbon | A hydrocarbon that contains the greatest possible number of hydrogen atoms, so that the molecule contains neither rings nor multiple bonds. (05 Mar 2000) |
| hydrocarbon | An organic molecule which consists only of carbon and hydrogen atoms, and no other elements. (09 Oct 1997) |
| Diels hydrocarbon | <biochemistry> A phenanthrene derivative obtained by the dehydrogenation of various steroids. (05 Mar 2000) |
| fluorinated hydrocarbon | A molecule which is almost entirely carbon and hydrogen, but has had at least one fluorine atom introduced to it that has replaced one of the hydrogen atoms. (09 Oct 1997) |
| liquid hydrocarbon | One of a very large group of chemical compounds composed only of carbon and hydrogen. The largest source of hydrocarbons is petroleum. (05 Dec 1998) |
| aromatic | Having a spicy odour. Origin: L. Aromaticus, Gr. Aromatikos (13 Nov 1997) |
| aromatic amine acetyltransferase | <enzyme> Marker for colourectal cancer Registry number: EC 2.3.1.- (26 Jun 1999) |
| aromatic amine dehydrogenase | <enzyme> Oxidatively deaminates aromatic amines to aldehydes; phenazine methosulfate acts as electron acceptor Registry number: EC 1.5.99.- (26 Jun 1999) |
| aromatic ammonia spirit | A hydroalcoholic solution containing approximately 2% ammonia and 4% ammonium carbonate and the aromatics: lemon oil, lavender oil, and myristica oil. Used mainly by inhalation to produce reflex stimulation in persons who have fainted or are at risk of syncope. Synonym: sal volatile, smelling salts. (05 Mar 2000) |
| aromatic castor oil | Contains cinnamon oil 3, clove oil 1, vanillin 1, saccharin 0.5, alcohol 30, in castor oil to make 1000; a cathartic. (05 Mar 2000) |
| aromatic compound | Any compound in which the constituent atoms, or any part of them, form a ring. Used mainly in organic chemistry where: 1) numerous compound's contain rings of carbon atoms (carbocyclic compound's) or carbon atoms plus one or more atoms of other types (heterocyclic compound's), usually nitrogen, oxygen, or sulfur; 2) where the atoms in the ring are all of the same element (homocyclic or isocyclic compound); 3) where the ring is saturated or contains nonconjugated double bonds (alicyclic compound), the compound is similar in properties to the corresponding acyclic compound (e.g., cyclohexane resembles hexane); 4) where the ring contains conjugated double bonds in a closed loop in which there are 4n + 2 (where n is an integer) delocalised π electrons (Huckel's rule) (aromatic compound; e.g., benzene, pyridine), it is more stable than the corresponding saturated ring and exhibits unusual chemical properties characteristic of itself and not of other types of rings or of acyclic compound's. These aromatic compounds have the ability to sustain an induced ring current. Synonym: closed chain compound, ring compound. (05 Mar 2000) |
| aromatic d-amino-acid decarboxylase | <enzyme> An enzyme that catalyses the decarboxylation of l-dopa to dopamine, of l-tryptophan to tryptamine, and of l-hydroxytryptophan to serotonin; important in the biosynthetic pathway of catecholamines and melanin. Synonym: dopa decarboxylase, hydroxytryptophan decarboxylase, tryptophan decarboxylase. (05 Mar 2000) |
| aromatic hydrocarbon |
a hydrocarbon that contains one or more benzene rings that are characteristic of the benzene series of organic compounds
Ãâó: wordnet.princeton.edu/perl/webwn
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| aromatic hydrocarbon |
An aromatic hydrocarbon (abbreviated as AH), or arene is a hydrocarbon, the molecular structure of which incorporates one or more planar sets of six carbon atoms that are connected by delocalised electrons numbering the same as if they consisted of alternating single and double covalent bonds.After the simplest possible aromatic hydrocarbon, benzene, such a configuration of six carbon atoms is known as a benzene ring. ...
Ãâó: en.wikipedia.org/wiki/Aromatic_hydrocarbon
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| aromatic hydrocarbon |
Highly flammable. Heating may cause pressure buildup and possible rupture of the container. Eye and skin irritant. May contain traces of benzene, which is carcinogenic. Neurotoxic. Used in some adhesives.
Ãâó: www.georgiastrait.org/toxicglossary.php
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| aromatic hydrocarbon |
A hydrocarbon in which the carbon atoms are in a ring, or cyclic, configuration.
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