|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|a fool or simpleton; ninny.|
|1.||a piece of glass or other transparent material, used to converge or diverge transmitted light and form optical images|
|2.||Also called: compound lens a combination of such lenses for forming images or concentrating a beam of light|
|3.||See electron lens a device that diverges or converges a beam of electromagnetic radiation, sound, or particles|
|4.||anatomy See crystalline lens|
|[C17: from Latin lēns lentil, referring to the similarity of a lens to the shape of a lentil]|
n. pl. lens·es
A ground or molded piece of glass, plastic, or other transparent material with opposite surfaces either or both of which are curved, by means of which light rays are refracted so that they converge or diverge to form an image.
A transparent, biconvex body of the eye between the iris and the vitreous humor that focuses light rays entering through the pupil to form an image on the retina.
|lens (lěnz) Pronunciation Key
(click for larger image in new window)