[fen-l, feen-l]
adjective Chemistry.
containing the phenyl group.

1840–50; phen- + -yl Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
phenyl (ˈfiːnaɪl, ˈfɛnɪl)
(modifier) of, containing, or consisting of the monovalent group C6H5, derived from benzene: a phenyl group or radical

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

phenyl phen·yl (fen'il)

Abbr. (Ph) the univalent radical of phenol;

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
phenyl   (fěn'əl, fē'nəl)  Pronunciation Key 
The radical C6H5, derived from benzene by the removal of one hydrogen atom.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Lignin is a complex highly crosslinked array of phenyl propylene units that has its biosynthetic origin in phenylalanine.
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