LENS

n. piece of transparent material having two opposite surfaces which refract rays of light to form an image; part of the eye which focuses light rays to form an image on the retina

Lens can refer to: In optics See Lens (optics), an optical element with perfect or approximate axial symmetry which transmits and refracts lightLens (anatomy), a part of the eyeCorrective lens for correction of human visionPhotographic lens, a lens designed for use on a camera. See also Sunglass lenses, which are light-attenuating elements
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Lens 1. a piece of glass or other transparent material so shaped as to converge or scatter light rays; see also glasses. 2. crystalline l. [more]Lens - Community and Resources

Noun
1. genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils
(synonym) genus Lens
(hypernym) rosid dicot genus
(member-holonym) Papilionoideae, subfamily Papilionoideae

Noun
1. a transparent optical device used to converge or diverge transmitted light and to form images
(synonym) lense, lens system
(hypernym) optical device
(hyponym) anastigmat
(part-holonym) optical instrument
2. (metaphor) a channel through which something can be seen or understood; "the writer is the lens through which history can be seen"
(hypernym) channel, communication channel, line
(classification) trope, figure of speech, figure, image
3. biconvex transparent body situated behind the iris in the eye; it focuses light waves on the retina
(synonym) crystalline lens
(hypernym) organ
(part-holonym) eye, oculus, optic
(part-meronym) lens capsule
4. electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons
(synonym) electron lens
(hypernym) electronic equipment

n. Lens, a city North France