Crookes lens
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noun
a type of lens, used in sunglasses, that is made from glass containing cerium. It reduces the transmission of ultraviolet radiation
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Words nearby Crookes lens
crooked, crookery, Crookes, Crookes dark space, crookesite, Crookes lens, Crookes radiometer, Crookes space, Crookes tube, crookneck, crook one's elbow
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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