9 Grammatical Pitfalls


[hee-ter] /ˈhi tər/
any of various apparatus for heating, especially for heating water or the air in a room.
Electronics. the element of a vacuum tube that carries the current for heating a cathode.
Slang. a pistol, revolver, or other firearm.
Origin of heater
1490-1500; heat + -er1
Related forms
reheater, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for heater
  • Turn your hot water heater down to where showering with only the hot tap open is comfortable.
  • And that you should bolt your house to its foundation and lash the water heater to the wall.
  • When it's time to replace your water heater, consider installing a solar version.
  • Cardboard wine cartons were messily piled in one corner, behind the pool heater.
  • Imagine your heater talking to your air conditioner and your room lighting.
  • It also had two jacuzzis--and a hot water heater the size of a thimble.
  • My empty stocking dangled above the space heater from a clothesline shimmering with silver icicles.
  • It could even help with driving lights and heater fans while the car is running.
  • When the laundry room's hot-water heater broke for a week, the staff washed bedding in cold water, which failed to do the job.
  • His materials included a bicycle chain and pipes from a hot-water heater.
British Dictionary definitions for heater


any device for supplying heat, such as a hot-air blower, radiator, convector, etc
(US, slang) a pistol
(electronics) a conductor carrying a current that indirectly heats the cathode in some types of valve
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for heater

c.1500, of persons, agent noun from heat. Of devices, from 1660s. Baseball slang meaning "fastball" is attested by 1985.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Difficulty index for heater

Many English speakers likely know this word

Word Value for heater

Scrabble Words With Friends