Wiktionary
a. (context physics English) Describing any particle or system whose energy is greater than that of its thermal component
Usage examples of "superthermal".
How long does it take you to shape a plume from the sun and then set off the superthermal laser effect?
Even your sun-powered superthermal laser won’t reach the farthest targets.
The superthermal laser effect would be propagating for minutes before it left the plume.
A superconducting network embedded in the Ringworld floor generates a superthermal laser effect in a solar flare.
The grid allows magnetic manipulation of solar flares to cause a superthermal laser effect, the Ringworld meteor defense.
He went over to the first, checked to see that it did contain high-technology items, then dropped a superthermal demolition charge in.
That was a goddamn superthermal charge which took out the Nystol Gallery.
His armor frame wasn’t exactly designed with a superthermal charge in mind, but its deflector field did provide some shielding.