This is the 7128th most frequent Japanese word.
レンチン
"レンチン" means "microwaving food."
"レンチン" is used here as a verb indicating the act of microwaving food. It is derived from the Japanese words "電子 (denji - electric)" and "チン (chin - the sound made by a microwave signaling completion).
ご飯をレンチンしてから食べた。
I microwaved the rice before eating it.
"レンチン" is employed as a noun denoting the method of using a microwave oven for heating food. It casually refers to microwave heating.
そのスープはレンチンで温めるのが便利です。
Warming up the soup using the microwave is convenient.
Here, "レンチン" modifies "料理" (meals) to describe dishes that can be prepared or heated using a microwave. It reflects its adaptation to describe specific types of food items.