a complex pyridine, CHNO, one of the vitamins of the B group, found in various foods and prepared synthetically, usually as the hydrochloride: known to prevent nutritional dermatitis in rats
See pyridoxine in American Heritage Dictionary 4
(pĭrˌĭ-dŏkˈsēn, -sĭn) also pyr·i·dox·in(-dŏkˈsĭn)
noun
A pyridine derivative, C18H11NO3, occurring especially in cereals, yeast, liver, and fish and serving as a coenzyme in amino acid synthesis. Also called vitamin B6.