benzene ring(redirected from benzene nucleus)
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benzene ring[′ben‚zēn ‚riŋ]
The six-carbon ring structure found in benzene, C6H6, and in organic compounds formed from benzene by replacement of one or more hydrogen atoms by other chemical atoms or radicals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.