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

There are infrared heaters under the seating areas to keep fans comfortable in the frigid Buffalo winters. — Ian Miller Outkick, FOXNews.com, 9 Aug. 2026

Dylan Lee issued a pair of two-out walks in the eighth before getting pinch-hitter Paul Goldschmidt to strike out chasing a heater. — Chad Bishop, AJC.com, 8 Aug. 2026

Using geothermal means buildings don’t burn fossil fuels, and residents or other users aren’t bothered by rumbling air conditioners or noisy heaters, Weigert said. — Brian J. Rogal, Chicago Tribune, 6 Aug. 2026

Turning off instruments and heaters in the frigid temperatures of interstellar space risks chilling the probes beyond repair. — Ashley Strickland, CNN Money, 6 Aug. 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