Word: 退化 (tuìhuà) 退化 dictionary entry tuìhuà to degenerate; atrophy Full dictionary entry for 退化 Example sentences using 退化 2 sentences, showing page 1 of 1. 洞里的鱼眼睛已经退化了。 Dòng lǐ de yú yǎnjing yǐjīng tuìhuàle. The eyes of the fish in the cave have atrophied. 长期不用，你的能力会退化的。 Chángqī búyòng, nǐ de nénglì huì tuìhuà de. If you don't use it for a long time, your ability will degenerate.