pyridoxine

American

[pir-i-dok-seen, -sin] / ˌpɪr ɪˈdɒk sin, -sɪn /

Also pyridoxin

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 .

pyridoxine British

/ ˌpɪrɪˈdɒksiːn /

noun

Also: vitamin B6. biochem a derivative of pyridine that is a precursor of the compounds pyridoxal and pyridoxamine

"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

pyridoxine Scientific

/ pĭr′ĭ-dŏk′sēn /

A pyridine derivative that is the main form of vitamin B _6. Chemical formula: C ₈ H ₁₁ NO ₃ .

Etymology

Origin of pyridoxine

First recorded in 1935–40; pyrid(ine) + ox(ygen) + -ine ²

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It suggests one of the first medications people should be offered is Xonvea, scientifically known as doxylamine succinate and pyridoxine hydrochloride.

From BBC • Dec. 10, 2025

This kind of epilepsy is called pyridoxine-dependent epilepsy, because it’s treated by giving the patient heavy amounts of vitamin B6, or pyridoxine.

From Salon • Mar. 5, 2025

For more than 40 years, pregnant women around the world sought help for morning sickness through a combination of the two main ingredients in Diclegis: pyridoxine and doxylamine.

From Washington Post • Jan. 4, 2017

Another vitamin, pyridoxine, turns hair grey�but it is essential for red blood cells and digestion.

From Time Magazine Archive

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023