As nouns the difference between megahertz and hypersound
is that megahertz is a unit equal to one-million cycles per second while hypersound is sound with a frequency greater than approximately 100 megahertz.
megahertz
English
Noun
(megahertz)
A unit equal to one-million cycles per second.
hypersound
English
Noun
(physics) sound with a frequency greater than approximately 100 megahertz
See also
*ultrasound