We don't have synonyms for graser yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are grater, eraser and greaser.
(n) :
The beam of coherent gamma rays produced by such a device.
(n) :
(physics, science fiction) A device for the coherent amplification or generation of electromagnetic radiation in the gamma ray wavelength by the use of excitation energy in resonant atomic or molecular systems.
(n) :
The beam of coherent gamma rays produced by such a device.
(n) :
(physics, science fiction) A device for the coherent amplification or generation of electromagnetic radiation in the gamma ray wavelength by the use of excitation energy in resonant atomic or molecular systems.