/pir'i dok"seen, -sin/ , n. Biochem.
a derivative of pyridine, C 8 H 11 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/ .
[ 1935-40; PYRID(INE) + OX(YGEN) + -INE 2 ]