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macro-

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macro-

a combining form meaning “large,” “long,” “great,” “excessive,” used in the formation of compound words, contrasting with micro-: macrocosm; macrofossil; macrograph; macroscopic.
Also, especially before a vowel, macr-.


Origin:
< Gk makro-, comb. form of makrós long; c. L macer lean; see meager
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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macro- or macr-  
pref.  
  1. Large: macronucleus.

  2. Long: macrobiotics.

  3. Inclusive: macroinstruction.


[Greek makro-, from makros, large; see māk- in Indo-European roots.]
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

macro- 
comb. form meaning "long," from Gk. makros "long, large," from PIE base *mak-/*mek- "long, thin" (cf. L. macer "lean, thin;" O.N. magr, O.E. mæger "lean, thin;" Gk. mekos "length," makros "long"). As a stand-alone word, in computer programming, meaning "a macro-instruction," it is attested from 1959.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

macro- or macr-
pref.

  1. Large: macronucleus.

  2. Long: macrobiotic.

  3. Inclusive: macroamylase.

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

macro-
Prefix large. Opposite of micro-. In the mainstream and among other technical cultures (for example, medical people) this competes with the prefix mega-, but hackers tend to restrict the latter to quantification.
[The Jargon File]

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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