## Meanings
1. A curved piece of glass or plastic that focuses light, used in cameras, glasses, and microscopes.
2. The clear part inside the eye that focuses light to form images.
3. A particular way of looking at or understanding something.

## Examples
- She fitted a wide-angle lens to her camera.
- As we age, the lens of the eye becomes less flexible.
- He views the past through the lens of his own experience.

## Derived Forms
- delens
- goniolens
- hyperlens
- lensatic
- lensectomy
- lenser
- lensfree
- lenshound
- lensless
- lenslet
- lenslike
- lensmaker

## Roots and Affixes
- Root: lēns

## Etymology
Etymology tree Latin lēns Arabic عَدْسَة (ʕadsa)sl. Medieval Latin lēnsbor. English lens Borrowed from Latin lēns (“lentil”), with Medieval Latin later taking on the sense of “lens”, a semantic loan from Arabic عَدْسَة (ʕadsa, “lentil; optic lens”); the similar shape is the common factor.

## AI Etymology
Lens is borrowed from Latin lēns (“lentil”), with Medieval Latin later taking on the sense of “lens”, a semantic loan from Arabic عَدْسَة (ʕadsa, “lentil; optic lens”); the similar shape is the common factor. The historical chain includes lēns (Latin). The surrounding word family includes derived forms such as delens, goniolens, hyperlens, and lensatic. In present use it covers a curved piece of glass or plastic that focuses light, used in cameras, glasses, and microscopes, the clear part inside the eye that focuses light to form images, and a particular way of looking at or understanding something.

## Topics
- Materials & Substances

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