heating cabinet; warming drawer
A kitchen appliance that keeps food warm, often built into cabinetry. Not a refrigerator; the kanji 温 (warm) distinguishes it from 冷蔵庫 (refrigerator).
Keep the food warm in the warming drawer.
Compound of 温 (on, 'warm') + 蔵 (zō, 'store') + 庫 (ko, 'warehouse'). A modern coined term for a warming appliance.