superheat

1 of 2

verb

su·​per·​heat ˌsü-pər-ˈhēt 

superheated; superheating; superheats

transitive verb

1

: 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

: to heat (a liquid) above the boiling point without converting into vapor

superheater noun

superheat

2 of 2

noun

su·​per·​heat ˈsü-pər-ˌhēt  ˌsü-pər-ˈhēt 

: the extra heat imparted to a vapor in superheating it from a dry and saturated condition

also : the corresponding rise of temperature

Examples of superheat in a Sentence

Recent Examples on the Web

Verb

Magma deep within Earth’s internal plumbing system superheats groundwater, eventually forcing it to the surface. — Madison Dapcevich, Outside, 4 Mar. 2026

Cala’s systems, which will hit the market later this summer, are designed to superheat water in the tank when electricity is cheap, then store it until needed. — Erik Kobayashi-Solomon, Forbes.com, 17 July 2025

Noun

Magma deep within Earth’s internal plumbing system superheats groundwater, eventually forcing it to the surface. — Madison Dapcevich, Outside, 4 Mar. 2026

The first solar active solar technology used in Arizona, installed in 1904, was a steam engine that used mirrors to superheat water and drive pumps for irrigation. — Austin Corona, AZCentral.com, 7 Dec. 2025

Word History

First Known Use

Verb

1849, in the meaning defined at sense 1

Noun

1852, in the meaning defined above

Rhymes for superheat

• bittersweet
• incomplete
• indiscreet
• marguerite
• obsolete
• overeat
• overheat
• parakeet
• stillingfleet
• amit
• athlete
• backseat

Kids Definition

superheat

verb

su·​per·​heat

ˌsü-pər-ˈhēt

1

a

: to heat (steam) to a higher temperature than the normal boiling point of water

b

: to heat a liquid above the boiling point without converting into vapor

2

: to heat very much or excessively