backlighting

[bak-lahy-ting]
noun
a controlled technique of lighting, used in photography or the theater, in which a light is placed behind or at right angles to an object, person, or scene to produce such effects as depth or separation of subject and background.
Also called rim lighting.


Origin:
1950–55; back1 + lighting

Dictionary.com Unabridged

backlight

[bak-lahyt]
noun
1.
Movies, Television. a light source placed behind an actor, object, or scene to create a highlight that separates the subject from the background.
verb (used with object), backlighted or backlit, backlighting.
2.
to illuminate (something) from behind.

Origin:
1950–55; back1 + light1

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Example sentences
Together, the technologies offer a solution of readable type and note entering
  ability without backlighting.
To measure shock-wave and particle speeds, scientists use a technique called
  x-ray backlighting.
Easy access primary controls with tri-state backlighting and multi-function
  controls.
Type of animation using intricately cut-out paper figures silhouetted with
  backlighting.
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