See Also: cryoextraction(medicine)

niacin (iou) and cryoextraction (medicine)


niacin (iou)



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

cryoextraction (medicine)


cryoextraction


Removal of cataracts by the adhesion of a freezing probe to the lens; now rarely done.