電子(でんし)レンジ

でんしれんじ
noun
microwave oven
colloquialelectronics
1. microwave oven
An electrical kitchen appliance that heats food using electromagnetic radiation in the microwave frequency range.
電子(でんし)レンジで温(あたた)める。
Heat in the microwave.
Defrost frozen food in the microwave.
This container is microwave-safe.

Often shortened to レンジ in casual speech. Common operations:

Types

Safety notes

「チンする」 is very common in everyday speech: 「これ、チンして」(Heat this up, would you?).