- MEDUSA is also a fictional energy weapon in Philip Reeve's novel Mortal Engines, completely different from the real-life MEDUSA weapon and its name is not known to be an acronym.
MEDUSA (Mob Excess Deterrent Using Silent Audio) is a directed-energy non-lethal weapon designed by WaveBand Corporation in 2003-2004 for temporary personnel incapacitation. The weapon is based on the microwave auditory effect resulting in a strong sound sensation in the human head when it is subject to certain kinds of pulsed/modulated microwave radiation. The developers claimed that through the combination of pulse parameters and pulse power, it is possible to raise the auditory sensation to a “discomfort” level, deterring personnel from entering a protected perimeter or, if necessary, temporarily incapacitating particular individuals. 
- "Navy SBIR/STTR Search Database". NavySBIRProgram.com. 2004.
- "ACQUISITION OF WAVEBAND CORPORATION (WB) BY SIERRA NEVADA CORPORATION (SNC)". SNCorp.com. 2005-05-01.