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noungenus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils
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nounelectronic equipment that uses a magnetic or electric field in order to focus a beam of electrons
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nouna transparent optical device used to converge or diverge transmitted light and to form images
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nounbiconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focus light on the retina
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noun(metaphor) a channel through which something can be seen or understoodtype of:
Definition that contains lens
- condenser lens used to concentrate light on an object
- monocle lens for correcting defective vision in one eye; held in place by facial muscles
- eyeglass lens for correcting defective vision in one eye; held in place by facial muscles
- fresnel lens lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length
- convex lens lens such that a beam of light passing through it is brought to a point or focus
- optical condenser lens used to concentrate light on an object
- converging lens lens such that a beam of light passing through it is brought to a point or focus