double boiler

Noun

 * 1) A large pan containing hot water, into which other smaller pans are set in order to cook food at low heat (below the boiling point) or to keep food warm.
 * 2) A pair of interlocking pots, the lower one filled with water which when boiling heats the contents of the upper pot.

Translations

 * Chinese:
 * Mandarin:, 雙重蒸鍋
 * Finnish:
 * Ido:
 * Italian:
 * Polish:
 * Portuguese: