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Crown Colony
Crown corporation
Crown Court
crown gall
crown glass
crown green
crown jewel
crown land
crown lens
crown-of-thorns
Crown Office
crown prince
crown princess
Crown Prosecution Service
Crown prosecutor
crown roast
crown saw
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crown lens
crown lens (plural crown lens·es)


noun 
Definition:
 
lens of crown glass: a lens made of crown glass, especially the converging component of an achromatic lens
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