lens

Definitions

• 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.
• (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) A way of looking, literally or figuratively, at something.
• (obsolete) (plural of) lens