strobe light Unabridged


[stroh-buh-skohp, strob-uh-]
a device for studying the motion of a body, especially a body in rapid revolution or vibration, by making the motion appear to slow down or stop, as by periodically illuminating the body or viewing it through widely spaced openings in a revolving disk.
Also called strobe, strobe light, stroboscopic lamp. a lamp capable of producing an extremely short, brilliant burst of light, for synchronization with a camera having a high shutter speed, in order to photograph a rapidly moving object, as a bullet, for such a short duration that it will appear to be standing still.
the device and equipment for holding and firing such a lamp.
such a lamp used for creating special lighting effects, as in a theater or discotheque or at a rock concert.

1830–40; < Greek stróbo(s) action of whirling + -scope

stroboscopic [stroh-buh-skop-ik, strob-uh-] , stroboscopical, adjective
stroboscopy [struh-bos-kuh-pee] , noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
strobe (strəʊb)
1.  strobe lighting short for stroboscope
2.  to give the appearance of arrested or slow motion by using intermittent illumination

stroboscope (ˈstrəʊbəˌskəʊp)
1.  Sometimes shortened to: strobe an instrument producing a flashing light, the frequency of which can be synchronized with some multiple of the frequency of rotation, vibration, or operation of an object, etc, making it appear stationary. It is used to determine speeds of rotation or vibration, or to adjust objects or parts
2.  a similar device synchronized with the opening of the shutter of a camera so that a series of still photographs can be taken of a moving object
[C19: from strobo-, from Greek strobos a twisting, whirling + -scope]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

1942, shortening of stroboscope "instrument for studying motion by periodically interrupted light" (1896), from Gk. strobos "act of whirling" + -scope, from Gk. skopein "to look at, examine."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
strobe   (strōb)  Pronunciation Key 
  1. A strobe light.

  2. A stroboscope.

  3. A spot of higher than normal intensity in the sweep of an indicator on a scanning device, as on a radar screen, used as a reference mark for determining the position or distance of the object scanned or detected.

strobe light  
A lamp that produces very short, intense flashes of light by means of an electric discharge in a gas. The ability of strobe lights to "freeze" the motion of rapidly moving objects by making them visible for only a fraction of a second makes them very useful in photography and in measuring vibration and other types of high-speed motion.
stroboscope   (strō'bə-skōp')  Pronunciation Key 
Any of various instruments used to observe moving objects by making them appear stationary, especially with pulsed illumination or mechanical devices that intermittently interrupt observation.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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