blip

[blip]
noun
1.
Also called pip. Electronics.
a.
a spot of light on a radar screen indicating the position of a plane, submarine, or other object.
b.
(loosely) any small spot of light on a display screen.
2.
a brief upturn, as in revenue or income: The midwinter blip was no cause for optimism among store owners.
3.
anything small, as in amount or number: a blip of light; Those opposed were merely a blip in the opinion polls.
4.
bleep ( def 3 ).
5.
Slang. a nickel; five cents.
6.
Movies. a mark of synchronization on a sound track.
7.
a small or brief interruption, as in the continuity of a motion-picture film or the supply of light or electricity: There were blips in the TV film where the commercials had been edited out.
verb (used without object), blipped, blipping.
8.
Informal. to move or proceed in short, irregular, jerking movements: The stock market has blipped one point higher this week.
verb (used with object), blipped, blipping.
9.
bleep ( def 5 ).

Origin:
1890–95, for an earlier sense; sound symbolism, with p for brevity and abrupt end of the impulse; bl- perhaps from blink

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
blip (blɪp)
 
n
1.  a repetitive sound, such as that produced by an electronic device, by dripping water, etc
2.  Also called: pip the spot of light or a sharply peaked pulse on a radar screen indicating the position of an object
3.  a temporary irregularity recorded in performance of something
 
vb , blips, blipping, blipped
4.  (intr) to produce such a noise
 
[C20: of imitative origin]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

blip
1894, of echoic origin. Radar screen sense is from 1945.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
At this point it's impossible to say whether this working paper will be
  anything other than a blip in the scholarly literature.
Sometimes, the weird blip would disappear, in which case the problem was solved.
More remarkable, though, is that this unprecedented change is not a blip but a
  beginning.
New official forecasts make clear that the spring slowdown was no blip.
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