macros

macro

[mak-roh]
adjective
1.
very large in scale, scope, or capability.
2.
of or pertaining to macroeconomics.
noun, plural macros.
3.
anything very large in scale, scope, or capability.
4.
Photography. a macro lens.
5.
Also called macroinstruction. Computers. an instruction that represents a sequence of instructions in abbreviated form.

Origin:
independent use of macro-, taken as an adjective, or by shortening of words with macro- as initial element

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
macro (ˈmækrəʊ)
 
n , pl macros
1.  a macro lens
2.  Also: macro instruction a single computer instruction that initiates a set of instructions to perform a specific task

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

macro
in computing sense, 1959, from macroinstruction, from macro- + instruction.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
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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American Heritage
Science Dictionary
macro-  
A prefix meaning "large," as in macromolecule, a large molecule.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Slang Dictionary

macro

/mak'roh/ n. [techspeak] A name (possibly followed by a formal arg list) that is equated to a text or symbolic expression to which it is to be expanded (possibly with the substitution of actual arguments) by a macro expander. This definition can be found in any technical dictionary; what those won't tell you is how the hackish connotations of the term have changed over time.

The term `macro' originated in early assemblers, which encouraged the use of macros as a structuring and information-hiding device. During the early 1970s, macro assemblers became ubiquitous, and sometimes quite as powerful and expensive as HLLs, only to fall from favor as improving compiler technology marginalized assembler programming (see languages of choice). Nowadays the term is most often used in connection with the C preprocessor, LISP, or one of several special-purpose languages built around a macro-expansion facility (such as TeX or Unix's [nt]roff suite).

Indeed, the meaning has drifted enough that the collective `macros' is now sometimes used for code in any special-purpose application control language (whether or not the language is actually translated by text expansion), and for macro-like entities such as the `keyboard macros' supported in some text editors (and PC TSR or Macintosh INIT/CDEV keyboard enhancers).
American Heritage
Abbreviations & Acronyms
macro
macroinstruction
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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