骨质疏松症 gǔzhìshūsōngzhèng osteoporosis Origin Definitions Defs Strokes Stroke Words Sentences Sents 骨质疏松 骨質疏鬆 gǔzhìshūsōng osteoporosis medical condition in which the bones become brittle and fragile; osteoporosis症 zhèng affixnoun disease (bound form) disease; illness; medical symptoms