lens Definition in the Cambridge English Dictionary Cambridge dictionaries logo

Definition of “lens” - English Dictionary

"lens" in American English

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lensnoun [C]

 us   /lenz/
  • lens noun [C] (GLASS)

a ​piece of ​glass or ​plastic having a ​curvedsurface in ​order to ​change the ​images that are ​received after going through it, usually to make them ​larger, ​smaller, or ​clearer: a ​camera lens Her ​eyeglasses have ​thick lenses.
  • lens noun [C] (EYE)

a ​curved, ​transparentpart of the ​eye that ​helps you to ​seeclearly by ​directingimages of ​light onto the ​retina (= the back ​surface of the ​eye)
(Definition of lens from the Cambridge Academic Content Dictionary © Cambridge University Press)







"lens" in British English

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lensnoun [C]

uk   us   /lenz/
  • lens noun [C] (GLASS)

a ​curvedpiece of ​glass, ​plastic, or other ​transparentmaterial, used in ​cameras, ​glasses, and ​scientificequipment, that makes ​objectsseemcloser, ​larger, ​smaller, etc.: a ​camera with a ​zoom lens →  contact lens
  • lens noun [C] (EYE)

the ​part of the ​eye behind the pupil (= the ​blackhole at the ​front of the ​eye) that ​helps you to ​seeclearly by focusing (= ​collecting)light onto the ​retina
(Definition of lens from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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