heater

noun

heat·​er ˈhē-tər 

1

: one that heats

especially : a device that imparts heat or holds something to be heated

2

: fastball

Examples of heater in a Sentence

Recent Examples on the Web

The next time temperatures soar to 100 degrees or plummet to 10, New Yorkers shouldn’t wonder if the power grid can keep up with air conditioners or heaters. — Mark Levine, New York Daily News, 20 Sep. 2026

Known for his abrasive-yet-glossy futurism equally as much as his ear for house-pop heaters, there have been co-writes with Madonna and a wealth of British dance supernovas (Becky Hill, Joel Corry). — Sophie Williams, Billboard, 18 Sep. 2026

If pressure, temperature, flow or level moves away from its set point, the controller adjusts a valve, heater, pump or another manipulated variable. — Gregory Shahnovsky, Forbes.com, 10 Sep. 2026

Bliss Mobil's standard 13-foot units include diesel heating, but since this one has been designed to run on 100% electricity without any fossil fuel usage, that heater has been axed from the spec list. — New Atlas, 10 Sep. 2026

Word History

First Known Use

15th century, in the meaning defined at sense 1

Phrases Containing heater

• immersion heater
• quartz heater
• space heater
• water heater

Rhymes for heater

• beater
• cheater
• dieter
• eater
• liter
• litre
• meter
• metre
• neater
• praetor
• seater
• skeeter

Kids Definition

heater

noun

heat·​er ˈhēt-ər 

: a device that heats or holds something to be heated