
1) Medical sign
Found on
https://www.crosswordclues.com/clue/portsmouth-sign

Portsmouth sign refers to a situation in which the systolic blood pressure (SBP) reading (measured in mmHg) falls below that of the heart rate (HR) (measured in beats per minute). It typically signifies a worrying clinical prognosis, specifically caused by shock. The sign takes its name from physicians working at Portsmouth University who first de...
Found on
http://en.wikipedia.org/wiki/Portsmouth_sign
No exact match found.