Definition: In early use: an abscess of the ribs or inner surface of the chest (obs.); pain in the chest or the side, esp. when stabbing in nature and exacerbated by inspiration or coughing; an instance of this; any disease resulting in such pain. In later use: spec. inflammation of the pleura; pleuritis; an instance of this.
Other: At times Wallace goes a little happy on the medical terminology. It may be best not to think too hard on the source of his knowledge.
SNOOT score: 1
Source: Oxford English Dictionary