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searchlight

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search⋅light

[surch-lahyt]
–noun
1. a device, usually consisting of a light and reflector, for throwing a beam of light in any direction.
2. a beam of light so thrown.

Origin:
1880–85; search + light 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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search·light   (sûrch'līt')   
n.  
    1. An apparatus containing a light source and a reflector for projecting a high-intensity beam of approximately parallel rays of light.

    2. The beam of light so projected.

  1. A flashlight.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia

searchlight

high-intensity electric light with a reflector shaped to concentrate the beam, used to illuminate or search for distant objects or as a beacon.

Learn more about searchlight with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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