|diphenyl (daɪˈfiːnaɪl, -nɪl, -ˈfɛnɪl)|
|another name for biphenyl|
diphenyl di·phen·yl (dī-fěn'əl, -fē'nəl)
an aromatic hydrocarbon, used alone or with diphenyl ether as a heat-transfer fluid; chemical formula, C6H5C6H5. It may be isolated from coal tar; in the United States, it is manufactured on a large scale by the thermal dehydrogenation of benzene.
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