Word: 衰减 (shuāijiǎn) Traditional: 衰減 衰减 dictionary entry shuāijiǎn to weaken; to attenuate Full dictionary entry for 衰减 Example sentences using 衰减 2 sentences, showing page 1 of 1. 信号穿过厚墙以后会衰减很多。 Xìnhào chuānguò hòu qiáng yǐhòu huì shuāijiǎn hěn duō. The signal attenuates a lot after passing through a thick wall. 年纪大了，他的记忆力慢慢衰减。 Niánjì dàle, tā de jìyìlì mànmàn shuāijiǎn. As he got older, his memory gradually weakened.