scrambler

noun scramblers

1. Someone or something that scrambles (in various senses). May it comfort us latter-day scramblers up that fine old mountain to know that Le Conte found it "difficult and fatiguing in the extreme."
2. A vine that does not attach itself to its supports. Scramblers and palms that climb with the aid of hook-bearing leaves or modified inflorescences (i.e. Desmoncus and the lepidocaryoid rattans) climbed most successfully in dense clusters of small diameter supports, such as occur on the edge of treefall gaps.
3. A device that makes messages intentionally, but reversibly, unintelligible for reasons of privacy or security. In the movies spies are always talking over cell phones with built-in scramblers.
4. A motorcycle used for motocross.

Opposite: descrambler, unscrambler