See Also: niacin(medicine)
Niacin(health)
niacin(dictionary)
niacin(encyclopedia)
niacin(dictionary)
niacin deficiency(medicine)
niacin test(medicine)

niacin (iou)



niacin noun. M20.
[from nicotinic acid + -IN1.]
Biochemistry. Orig., nicotinic acid. Now also, nicotinamide.