lens (plural lenses or (obsolete) lens)
- An object, usually made of glass, that focuses or defocuses the light that passes through it.
- A device which focuses or defocuses electron beams.
- (geometry) A convex shape bounded by two circular arcs, joined at their endpoints, the corresponding concave shape being a lune.
- (biology) A genus of the legume family; its bean.
- (anatomy) The transparent crystalline structure in the eye.
- 2013 July-August, Fenella Saunders, “Tiny Lenses See the Big Picture”, in American Scientist:
- The single-imaging optic of the mammalian eye offers some distinct visual advantages. Such lenses can take in photons from a wide range of angles, increasing light sensitivity. They also have high spatial resolution, resolving incoming images in minute detail.
- (earth science) A body of rock, ice, or water shaped like a convex lens.
- (programming) A construct used in statically-typed functional programming languages to access nested data structures.
- (by extension, figuratively) A way of looking, literally or figuratively, at something.
- 2004 April 11, Ann Hulbert, “Are the Kids All Right?”, in The New York Times Magazine, page 11:
- If "the public looks at the condition of America's children largely through a negative lens," worries Child Trends […] , "it may be more difficult to […] promote child well-being."
- The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.
- (transitive, cinematography) To film, shoot.
- 2020 May 7, Katie Rife, “If you’re looking to jump in your seat, make a playdate with Z”, in The Onion AV Club:
- It’s set in an anonymous, upper-middle-class suburb, lensed in the generic gunmetal gray that will one day appear as dated as the fuzzy outlines of ’80s direct-to-video horror movies.
- (geology) To become thinner towards the edges.
lens (plural lense)
Probably related to lans (“lance”).
- Alternative form of
|Inflection of lens|
Unknown, likely a borrowing from an unidentified source.
Compare Old High German linsa, Lithuanian lęšis, Old Church Slavonic лѧща (lęšta), and Albanian lend (Proto-Albanian *lenta), sounding too similar for a coincidence, however different enough to prohibit reconstruction of a common PIE protoform. May also be related to Ancient Greek λάθυρος (láthuros).
If ultimately a non-IE loanword, locating the source is virtually impossible because cultivation of lentil was widespread in the region since the Neolithic.
Third-declension noun (i-stem, accusative singular in -em or -im, ablative singular in -e or -ī).
- Aromanian: lindinã
- Catalan: llémena
- French: lente
- Friulian: glendon
- Galician: lendia
- Italian: lendine
- Occitan: lende
- De Vaan, Michiel (2008), “lēns, -tis”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, page 334
- Ernout, Alfred; Meillet, Antoine (2001), “lens”, in Dictionnaire étymologique de la langue latine: histoire des mots (in French), with additions and corrections of André J., 4th edition, Paris: Klincksieck, page 351.
- lens in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
- lens in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
- lens in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette