HyperDic

English > 1 sense of the expression extinction angle:
NOUNshapeextinction angle, angle of extinctionthe angle from its axis that a crystal must be rotated before appearing maximally dark when viewed in polarized light
English > extinction angle: 1 sense > noun 1, shape
MeaningThe angle from its axis that a crystal must be rotated before appearing maximally dark when viewed in polarized light.
Synonymangle of extinction
BroaderangleThe space between two lines or planes that intersect