noun
heater
A device that produces heat.
A small heater keeps my office warm on cold mornings.
Etymology
The agent ending identifies a thing that performs heating. A heater produces or supplies warmth for the object, room, or material it serves.
More examples
- The water heater supplies hot water for our showers.
- Keep blankets and curtains away from electric heaters.
- This aquarium heater keeps the water at a steady temperature.
Forms
heater · heaters
heat verb — To make something warmer or hot.
Similar words
- radiator
- Usually transfers heat from hot water or steam into rooms.
- furnace
- Typically heats air for distribution throughout a building.