phen·yl

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

Origin:
1840–50; phen- + -yl

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Collins
World English Dictionary
phenyl (ˈfiːnaɪl, ˈfɛnɪl) [Click for IPA pronunciation guide]
 
n
(modifier) of, containing, or consisting of the monovalent group C6H5, derived from benzene: a phenyl group or radical

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00:10
Phenyl is always a great word to know.
So is interrobang. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
American Heritage
Medical Dictionary

phenyl phen·yl (fen'il)
n.

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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