lens
n//lɛnz//lins, objektiv
(optics) 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.