The Collaborative International Dictionary of English v.0.48:

macro \macro\ a.
   very large in scale or scope or capability; as,
   macroeconomics.
   [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Macro- \Mac"ro-\pref. [Gr. makro`s, adj.]
   A combining form signifying long, large, great; as
   macrodiagonal, macrospore, macromolecule, macrocosm.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

macro \macro\ n. [shortened form of macroinstruction]
   1. a single computer instruction which symbolizes, and is
      converted at the time of program execution or by a
      compiler into, a series of instructions in the same
      computer language.
      [WordNet 1.5]

   2. A keystroke (or combination of keystrokes) which
      symbolizes and is replaced by a series of keystrokes; -- a
      convenient feature of some advanced programs, such as word
      processors or database programs, which allows a user to
      rapidly execute any series of operations which may be
      performed multiple times. Such macros may typically be
      defined by the program user, without rewriting or
      recompiling the program.
      [PJC]

The Jargon File (version 4.4.7, 29 Dec 2003):

macro-
 pref.

    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 Free On-line Dictionary of Computing (30 December 2018):

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.

   [Jargon File]