冷れい凍とう剤ざいMeanings1nounrefrigerant; cooling agentTechnical term for a substance used in refrigeration systems, such as in air conditioners or refrigerators.エアコンには冷れい凍とう剤ざいが使つかわれている。Air conditioners use a refrigerant.冷れい凍とう剤ざいの漏もれを点てん検けんしてください。Please check for refrigerant leaks.