I. “+ transitive verb
Etymology: super- + heat, v.
1.
a. : to heat (a liquid) above the boiling point without converting into vapor
b. : to heat (a vapor not in contact with its own liquid) so as to cause to remain free from suspended liquid droplets
superheated steam
2.
a. : to heat very much ; especially : overheat
unbuttoned his coat … to cool his superheated blood — Josephine Pinckney
b. : to excite, intensify, or exaggerate excessively
II. ˈsüpə(r)+ˌ- noun
Etymology: super- + heat, n.
1. : the extra heat imparted to a vapor in superheating it from a dry and saturated condition ; also : the corresponding rise of temperature
2. : the difference in temperature between the lifting gas inside a balloon envelope and the outside air