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auto-

 - 6 dictionary results

auto-

1
a combining form meaning “self,” “same,” “spontaneous,” used in the formation of compound words: autograph.
Also, especially before a vowel, aut-.


Origin:
< Gk, comb. form of autós self

auto-

2
a combining form representing automobile in compound words: autocade.

Origin:
see auto

auto-

3
a combining form representing automatic in compound words: autoalarm; autofeed; autofocus. Sometimes also taken as an adjective: auto enlarger; auto stop control.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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auto- or aut-  
pref.  
  1. Self; same: autogamy.

  2. Automatic: autopilot.


[Greek, from autos, self.]
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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Word Origin & History

auto- 
from Gk. auto-, "self, one's own," combining form of autos "self, same," of unknown origin. The opposite prefix would be allo-.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

auto- or aut-
pref.
Self; same: autogamy.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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