| biphenyl | <chemistry> A white crystalline substance, C6H5.C6H5, obtained by leading benzene through a heated iron tube. It consists of two benzene or phenyl radicals united. Origin: Pref. Di- + phenyl. Source: Websters Dictionary (01 Mar 1998) |
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| biphenyl-2,3-dioxygenase | <enzyme> Converts polychlorinated biphenyls and biphenyls to biphenyl-2,3-dihydrodiol; a multicomponent enzyme containing a two-subunit iron-sulfur protein (bpha1 and a2), a ferredoxin (bpha3), and a reductase (bpha4); amino acid sequence given in first source Registry number: EC 1.14.99.- Synonym: bpha gene product (26 Jun 1999) |
| biphenyl-4-hydroxylase | <enzyme> Mixed function oxidase Registry number: EC 1.14.14.- (26 Jun 1999) |
| polychlorinated biphenyl | Biphenyl in which some or all of the hydrogen atoms attached to ring carbons are replaced by chlorine atoms; a probable human carcingogen and teratogen. (05 Mar 2000) |
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