Dictionary.com
Thesaurus.com

descrambler

American  
[dee-skram-bler] / diˈskræm blər /

noun

  1. unscrambler.


descrambler Scientific  
/ dē-skrămblər /
  1. An electronic device that decodes a scrambled transmission, typically a radio signal, into a signal that is intelligible to the receiving apparatus.


Etymology

Origin of descrambler

descramble + -er 1