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optic angle Line breaks: optic angle

Entry from British & World English dictionary

Definition of optic angle in English:


1The angle formed by notional lines from the extremities of an object to the eye, or by lines from the eyes to a given point.
2 Crystallography The angle between the optic axes of a biaxial doubly refracting crystal.
Example sentences
  • However, it was identified by Kile and Modreski as phlogopite; the optic angle was recently determined to be 16.7 degrees at a wavelength of 589.
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