胸膜炎 xiōngmóyán pleurisy Origin Definitions Defs Strokes Stroke Words Sentences Sents 胸膜 xiōngmó pleura The thin membrane that covers the surface of the lungs and lines the inside of the chest cavity; also known as 肋膜 lèimó.炎 yán noun inflammation (bound form) inflammation; infection; often used as a suffix for medical conditions ending in "-itis"