lens.
An object, usually made of glass, that focuses or defocuses the light that passes through it.
Meaning & usage
An object, usually made of glass, that focuses or defocuses the light that passes through it.
A device which focuses or defocuses other waves or radiation, such as microwave radiation, electron beams, sound waves (acoustic lenses), or explosions (explosive lenses).
A convex shape bounded by two circular arcs, joined at their endpoints, the corresponding concave shape being a lune.
The transparent crystalline structure in the eye.
A body of rock, ice, or water shaped like a convex lens.
A convex layer of fresh groundwater that floats above the denser saltwater, usually found on small coral or limestone islands and atolls.
A construct used in statically-typed functional programming languages to access nested data structures.
A way of looking, literally or figuratively, at something.
Where this word comes from
Etymology tree substratebor.? 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 عَدَسَة (ʕadasa, “lentil; optic lens”); the similar shape is the common factor.
To film, shoot.
To become thinner towards the edges.
Where this word comes from
Etymology tree substratebor.? 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 عَدَسَة (ʕadasa, “lentil; optic lens”); the similar shape is the common factor.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.