DICHROSCOPE
An Illustrated Encyclopedic Medical Dictionary · 1892 · p. 26
n. n. Di'kro-skop. An instrument for determining the different colors of minerals along their various axes, [a, 27.] [s. 563]
Bu kavram başka kaynaklarda da geçiyor
The American Dictionary and Cyclopedia (1910)
The Optical Dictionary (1904)
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