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| pertaining to an aromatic compound, which contains one or more benzene or equivalent heterocyclic rings: many such compounds have an agreeable odor |
| with all water removed, especially water of crystallization |
diphenyl di·phen·yl (dī-fěn'əl, -fē'nəl)
n.
See biphenyl.
diphenyl
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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