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lens's - 2 dictionary results
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lens     (lěnz)  Pronunciation Key 


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n.   pl. lens·es
  1. 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.
  2. A combination of two or more such pieces, sometimes with other optical devices such as prisms, used to form an image for viewing or photographing. Also called compound lens.
  3. A device that causes radiation other than light to converge or diverge by an action analogous to that of an optical lens.
  4. 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.
tr.v.   lensed, lens·ing, lens·es Informal
To make a photograph or movie of.

[New Latin lēns, from Latin, lentil (from the shape of a double convex lens).]
lensed adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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lens   (lěnz)  Pronunciation Key 


(click for larger image in new window)

  1. A transparent structure behind the iris of the eye that focuses light entering the eye on the retina.
    1. A piece of glass or plastic shaped so as to focus or spread light rays that pass through it, often for the purpose of forming an image.
    2. A combination of two or more such lenses, as in a camera or telescope. Also called compound lens.
  3. A device that causes radiation to converge or diverge by an action analogous to that of an optical lens. The system of electric fields used to focus electron beams in electron microscopes is an example of a lens.

The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
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