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[pir-i-dok-seen, -sin] /ˌpɪr ɪˈdɒk sin, -sɪn/
noun, Biochemistry.
a derivative of pyridine, C 8 H 1 1 NO 3 , occurring in whole-grain cereals, meats, fish, etc., and also made synthetically: required for the prevention of pellagra and the formation of hemoglobin; vitamin B 6 .
Also, pyridoxin
[pir-i-dok-sin] /ˌpɪr ɪˈdɒk sɪn/ (Show IPA)
Origin of pyridoxine
First recorded in 1935-40; pyrid(ine) + ox(ygen) + -ine2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for pyridoxine


(biochem) a derivative of pyridine that is a precursor of the compounds pyridoxal and pyridoxamine Also vitamin B6
Word Origin
C20: from pyrid(ine) + ox(ygen) +-ine²
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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pyridoxine in Medicine

pyridoxine pyr·i·dox·ine (pĭr'ĭ-dŏk'sēn, -sĭn) or pyr·i·dox·in (-dŏk'sĭn)
A pyridine derivative occurring especially in cereals, yeast, liver, and fish and serving as a coenzyme in amino acid synthesis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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pyridoxine in Science
A pyridine derivative that is the main form of vitamin B6. Chemical formula: C8H11NO3.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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