The building blocks of English

Affixes

pleur(o)-

The pleurae; the side of the body.

Greek pleura, side, pleuron, rib.

The pleurae (singular pleura) are the pair of membranes lining the thorax and enveloping the lungs. Pleurisy is inflammation of the pleurae; pleurodynia (Greek odunē, pain) is severe pain in the muscles between the ribs or in the diaphragm; pleuropneumonia is pneumonia complicated with pleurisy.