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tweak +‎ -able


tweakable (comparative more tweakable, superlative most tweakable)

  1. That can be tweaked; moddable, customizable.
    • 2007, David Pogue, Windows Vista for Starters: The Missing Manual:
      And it's every bit as tweakable as previous versions of Windows. You can turn off the new Aero look, or just selected parts of it.
  2. (cryptography, not comparable) Of a block cipher: accepting a second input (the "tweak"), used in conjunction with the key to select the permutation computed by the cipher.