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Webster 1913 Edition

Noun.

One who, or that which, warms.

See also: wärmer

warmer

warmer ‎(plural warmers)

Something that warms, such as a heater or a soup.
- 1993, Raymond Sokolov, Why We Eat What We Eat
  […] tortillas are kept warm and moist in an electric warmer […]
A piece of clothing for warmth, such as a bodywarmer or leg warmer.
An introductory activity, for example in a lesson, to stimulate interest in a topic.

warmer

warmer