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Definition of Concave lens
1. Noun. A lens such that a parallel beam of light passing through it is caused to diverge or spread out.
Medical Definition of Concave lens
1. A diverging minus power lens. Synonym: minus lens. (05 Mar 2000)
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1. Noun. A lens such that a parallel beam of light passing through it is caused to diverge or spread out.
1. A diverging minus power lens. Synonym: minus lens. (05 Mar 2000)