subtraction: Meaning and Definition of

sub•trac•tion

Pronunciation: (sub-trak'shun), [key]
— n.
  1. an act or instance of subtracting.
  2. the operation or process of finding the difference between two numbers or quantities, denoted by a minus sign (−).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: