Lens

[lenz] or [lɛnz]

Definition

(noun.) a transparent optical device used to converge or diverge transmitted light and to form images.

(noun.) electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons.

(noun.) biconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focuses light on the retina.

(noun.) (metaphor) a channel through which something can be seen or understood; 'the writer is the lens through which history can be seen'.

(noun.) genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils.

Edited by ELLA--From WordNet

Definition

(n.) A piece of glass, or other transparent substance, ground with two opposite regular surfaces, either both curved, or one curved and the other plane, and commonly used, either singly or combined, in optical instruments, for changing the direction of rays of light, and thus magnifying objects, or otherwise modifying vision. In practice, the curved surfaces are usually spherical, though rarely cylindrical, or of some other figure.

Checked by Curtis

Definition

n. (optics) a piece of transparent substance with one or both sides convex or concave the object to refract rays of light really or apparently radiating from a point and make them deviate so as to pass or travel on as if they had passed through another point: the crystalline humour of the eye: a genus of leguminous plants:—pl. Lens′es.

Checker: Willa

Examples

Checked by Lilith

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