退化 tuìhuà atrophy Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: atrophy All meanings 2 tuìhuà 2 atrophy 1degenerate 1 1 sentence for 退化 (tuìhuà — atrophy) 由于长期在黑暗中生活,这种鱼的眼睛已经退化了。 yóuyú chángqī zài hēi'àn zhōng shēnghuó, zhè zhǒng yú de yǎnjing yǐjīng tuìhuà le. Due to living in darkness for a long time, the eyes of this fish species have degenerated. Source: Dong Chinese Dictionary