subtractive adjective & noun. [sǝb'traktɪv] LME.
[from SUBTRACT + -IVE.]
A. adjective.
1. Of, pertaining to, or involving removal, subtraction, deduction, or decrease; (of a mathematical quantity) that is to be subtracted; negative, having a minus sign. LME.

2. spec. Of or pertaining to the reproduction of colours by filtering out different parts of the spectrum. E20.
b. noun. A thing that is subtracted or deducted from another; spec. (Linguistics) a subtractive morph or morpheme. M20.

[TahlilGaran] English Dictionary ▲