Skip to Content
Medical Term:


Pronunciation: prizm


A transparent solid with sides that converge at an angle, which deflects a ray of light toward the thickest portion (the base) and splits white light into its component colors; in spectacles, a prism corrects ocular muscle imbalance.

[G. prisma]

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.