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retinol

[ret-n-awl, -ol] /ˈrɛt nˌɔl, -ˌɒl/
noun
1.
2.
Chemistry. a yellowish oil, C 3 2 H 1 6 , obtained by the distillation of resin, used as a solvent and as an antiseptic.
Origin
1830-1840
1830-40; < Greek rhētī́n(ē) resin + -ol1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for retinol

retinol

/ˈrɛtɪˌnɒl/
noun
1.
another name for vitamin A2
2.
another name for rosin oil
Word Origin
C19: from Greek rhētinē resin + -ol1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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retinol in Medicine

retinol ret·i·nol (rět'n-ôl', -ōl')
n.
See vitamin A.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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retinol in Science
retinol
  (rět'n-ôl')   
See vitamin A.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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