Rapper

• (n.) One who, or that which, raps or knocks; specifically, the knocker of a door. • (n.) A forcible oath or lie.
Found on http://thinkexist.com/dictionary/meaning/rapper/

rapper

noun someone who performs rap music
Found on https://www.encyclo.co.uk/local/20974

Rapper

[electrostatic precipitation] Rappers are used to transmit strong shearing forces to collecting plates in order to release deposited dust particles. Rapping is the process by which electrodes and particles are broken apart by vibrations from the rappers. Often used in electrostatic precipitators, rappers relapse the caked on dust layer whic...
Found on http://en.wikipedia.org/wiki/Rapper_(electrostatic_precipitation)

Rapper

Rap'per (răp'pẽr) noun [ From Rap .] 1. One who, or that which, raps or knocks; specifically, the knocker of a door. Sterne. 2. A forcible oath or lie. [ Slang] Bp. Parker.
Found on http://www.encyclo.co.uk/webster/R/11

Rapper

Rapper is slang for someone who raps.
Found on http://www.probertencyclopaedia.com/browse/ZR.HTM
No exact match found