Definition of Lens

1. Noun. A transparent optical device used to converge or diverge transmitted light and to form images.

2. Noun. Genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils.
Exact synonyms: Genus Lens
Generic synonyms: Rosid Dicot Genus
Group relationships: Papilionoideae, Subfamily Papilionoideae

3. Noun. (metaphor) a channel through which something can be seen or understood. "The writer is the lens through which history can be seen"
Generic synonyms: Channel, Communication Channel, Line
Language type: Figure, Figure Of Speech, Image, Trope

4. Noun. Biconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focuses light on the retina.
Exact synonyms: Crystalline Lens, Lens Of The Eye
Generic synonyms: Organ
Group relationships: Eye, Oculus, Optic
Terms within: Cortex, Lens Cortex, Lens Capsule

5. Noun. Electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons.
Exact synonyms: Electron Lens
Generic synonyms: Electronic Equipment

Definition of Lens

1. 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.

Definition of Lens

1. Noun. An object, usually made of glass, that focuses or defocuses the light that passes through it. ¹

2. Noun. A device which focuses or defocuses electron beams. ¹

3. Noun. (geometry) A convex shape bounded by two circular arcs, joined at their endpoints, the corresponding concave shape being a lune. ¹

4. Noun. (biology) A genus of the legume family; its bean. ¹

5. Noun. (anatomy) The transparent crystalline structure in the eye. ¹

6. Noun. (by extension figuratively) A way of looking, literally or figuratively, at something. ¹

7. Verb. (transitive) To film, shoot. ¹

8. Verb. (geology) To become thinner towards the edges. ¹

¹ Source:

Definition of Lens

1. a piece of transparent material used in changing the convergence of light rays [n -ES] : LENSLESS [adj] / to make a film of [v -ED, -ING, -ES]

Medical Definition of Lens

1. A transparent optical element, so constructed that it serves to change the degree of convergence or divergence of the transmitted rays. (05 Aug 1998)

Lexicographical Neighbors of Lens

lennox-gastaut syndrome
lennox syndrome
lens (current term)
lens-induced uveitis
lens blank
lens blanks
lens board
lens boards
lens cap
lens capsule
lens clock
lens cover
lens flare
lens implant
lens maker
lens neutral proteinase
lens pits

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