- a derivative of pyridine, C8H11NO3, occurring in whole-grain cereals, meats, fish, etc., and also made synthetically: required for the prevention of pellagra and the formation of hemoglobin; vitamin B6.
Also pyr·i·dox·in [pir-i-dok-sin] /ˌpɪr ɪˈdɒk sɪn/.
Origin of pyridoxine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- biochem a derivative of pyridine that is a precursor of the compounds pyridoxal and pyridoxamineAlso: vitamin B 6
C20: from pyrid (ine) + ox (ygen) + -ine ²
- 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.
- A pyridine derivative that is the main form of vitamin B6. Chemical formula: C8H11NO3.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.