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subtractive

[suh b-trak-tiv] /səbˈtræk tɪv/
adjective
1.
tending to subtract; having power to subtract.
2.
Mathematics. (of a quantity) that is to be subtracted; having the minus sign (−).
Origin
1680-1690
1680-90; subtract + -ive
Related forms
nonsubtractive, adjective
nonsubtractively, adverb
unsubtractive, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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unsubtractive in Science
subtractive
  (səb-trāk'tĭv)   
  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.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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