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chopper

 - 5 dictionary results

chop⋅per

[chop-er]
–noun
1. a person or thing that chops.
2. a short ax with a large blade, used for cutting up meat, fish, etc.; butcher's cleaver.
3. a prehistoric implement made by striking flakes off one or both sides of a stone, considered the oldest known worked stone tool.
4. choppers, Slang. the teeth.
5. Informal. a helicopter.
6. Slang. a motorcycle.
7. a device for interrupting an electric current or a beam of light at regular intervals.
–verb (used without object)
8. Informal.
a. to travel by helicopter: We choppered into midtown from the airport.
b. to travel by motorcycle.

Origin:
1545–55; 1950–55 for def. 5; chop 1 + -er 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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chop·per   (chŏp'ər)   
n.  
  1. One that chops: a vegetable chopper.

  2. Archaeology A crudely flaked core tool, especially one of the early Paleolithic Period.

  3. A device that interrupts an electric current or a beam of radiation.

  4. Informal A helicopter.

  5. choppers Slang Teeth, especially a set of false teeth.

  6. Informal A motorcycle, especially one that is customized.

intr. & tr.v.   chop·pered, chop·per·ing, chop·pers
Informal To travel by helicopter or transport (someone or something) by helicopter.
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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Slang Dictionary
chopper

  1. n.
    a helicopter. : The chopper that monitors the traffic goes over my house every morning at 6:00.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
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Science Dictionary
chopper   (chŏp'ər)  Pronunciation Key 
A crudely flaked, unifacial core tool, especially one associated with the Oldowan stone culture of the early Paleolithic Period.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia

chopper

any of several types of transistors having four semiconducting layers and therefore three p-n junctions; the thyristor is a solid-state analogue of the thyratron vacuum tube, and its name derives from the combination of the two words thyratron and transistor. A common form of thyristor is the silicon-controlled rectifier (SCR), used to convert alternating current (AC) to direct current (DC) and widely used as a component of devices that control motor speeds, liquid levels, temperatures, and pressures.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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