ˌpirəˈdäkˌsēn, -_sə̇n noun
also pyr·i·dox·in -_sə̇n
( -s )
Etymology: pyrid- + ox- + -in or -ine
: a crystalline phenolic alcohol C 8 H 11 NO 3 derived from pyridine that is a member of the vitamin B 6 group convertible in the organism into pyridoxal and pyridoxamine, that occurs especially in cereals but is usually made synthetically, and that is administered chiefly in the form of its hydrochloride; 3-hydroxy-4,5-bis(hydroxymethyl)-2-methyl-pyridine ; broadly : vitamin B6