lens

US /lenz/
UK /lenz/
"lens" picture
1.

a piece of glass or other transparent material with curved sides for concentrating or dispersing light rays, used in optical instruments.

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The camera has a high-quality lens.
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He adjusted the lens to focus on the distant object.
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opticglass
2.

the transparent part of the eye that focuses light on the retina.

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The eye's natural lens helps us see clearly.
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Cataracts can cloud the eye's lens.
1.

to provide (a camera or other optical instrument) with a lens or lenses.

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The new telescope was lensed with advanced optics.
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The photographer carefully lensed his camera for the portrait shot.
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telephoto lenszoom lenswide-angle lens