subtractive

sub·trac·tive

[suhb-trak-tiv]
adjective
1.
tending to subtract; having power to subtract.
2.
Mathematics. (of a quantity) that is to be subtracted; having the minus sign (−).

Origin:
1680–90; subtract + -ive

non·sub·trac·tive, adjective
non·sub·trac·tive·ly, adverb
un·sub·trac·tive, adjective
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Collins
World English Dictionary
subtractive (səbˈtræktɪv) [Click for IPA pronunciation guide]
 
adj
1.  able or tending to remove or subtract
2.  indicating or requiring subtraction; having a minus sign: --x is a subtractive quantity

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Subtractive is always a great word to know.
So is solution. Does it mean:
the process of determining the answer to a problem, or the answer itself
the method of finding the fourth term in a proportion when three terms are given
American Heritage
Science Dictionary
subtractive   (səb-trāk'tĭv)  Pronunciation Key 
  1. Relating to the production of color by the blocking or removal of varying wavelengths, as with colored filters, or by the mixing of pigments that absorb certain wavelengths and reflect others. ◇ The subtractive primaries cyan, magenta, and yellow are those colors whose wavelengths can be filtered or absorbed in different proportions to produce all other colors. Compare additive. See Note at color.

  2. Marked by or involving subtraction.


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