BIREFRINGENCES is validvalid

BIREFRINGENCE,

187,133 of 196,601 in NWL2023·also valid in CSW24

BIREFRINGENCE, the refraction of light in an anisotropic material (as calcite) in two slightly different directions to form two rays

23,840 of 280,887 in CSW24·also valid in NWL2023

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