'Subtractive' definitions:

Definition of 'subtractive'

From: WordNet
adjective
Constituting or involving subtraction; "a subtractive correction" [ant: additive]

Definition of 'Subtractive'

From: GCIDE
  • Subtractive \Sub*trac"tive\, a.
  • 1. Tending, or having power, to subtract. [1913 Webster]
  • 2. (Math.) Having the negative sign, or sign minus. [1913 Webster]