noun

lens

lens, objective

I need a new lens for my camera.

I need a new lens for my camera.

The lens of the eye focuses light.

The lens of the eye focuses light.

a ((lens)) for (sth.) I need a new lens for my camera.

Synonyms: optic, glass

From Latin 'lens' (lentil), because early lenses were shaped like lentils.

Think of a camera lens or contact lenses. The shape is similar to a lentil.

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