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pleochroism
ple·och·ro·ism [ plee ókrō ìzzəm ]


noun 
Definition:
 
transmission of different colors: the property in some crystals of transmitting different colors when viewed along different axes
[Mid-19th century. <pleo- + Greek khrōs "skin, color"]

ple·o·chro·ic [ pl ə krṓ ik ] adjective
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