Dictionary
A•mi'ci prism"
Pronunciation: (u-mē'chē), [key] Optics.
a compound prism that spreads out incident white light into a spectrum but produces no deviation of the central color of the dispersed beam. Also called
direct-vision prism, roof prism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.