Microwaveable is an adjective, not a verb. It describes food, a meal, or a dish that you can put in a microwave oven to cook or heat. The ending -able means “you can do this to it.” A microwaveable tray is made so the oven will not melt it, spark, or catch fire; metal is not microwaveable, and neither is some plastic. Though actually, the tidy dictionary line “to cook something in a microwave” is the verb to microwave. This word is the “you can microwave it” form built from that idea. You will also see the spelling microwavable, without the e. Both appear on packets in shops. It is a packet-and-kitchen word, quite informal, very common on frozen food.

可微波的；可微波加熱的