拇囊炎 mǔnángyán bunion Origin Definitions Defs Strokes Stroke Words Sentences Sents 拇 mǔ noun thumb (bound form) thumb; big toe囊 náng noun sac something resembling a bag or sac in structure or function; anatomical sac炎 yán noun inflammation (bound form) inflammation; infection; often used as a suffix for medical conditions ending in "-itis"