退行性 tuìxíngxìng degenerative Definitions Defs Origin Strokes Stroke Words Sentences Sents 退行 tuìxíng to regress to recede; to degenerate; to move backward性 xìng affix [-ity] Suffix used after verbs or adjectives to form nouns expressing a state, quality, or scope, similar to English "-ity", "-ness", or "-ism".
