1. Very small or microscopic.
2. Basic or small-scale: the economy's performance at the micro level.

1. 1. A microcomputer.
   2. A microprocessor.
2. 1. A microbrewery.
   2. A microbrew.

[From MICRO-.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.