Etymology

P mitrale

Today it means: A broad and bifid P wave on an electrocardiogram, most commonly observed in lead II, usually caused by enlargement of the left atrium. Full definition →

New Latin mitrāle
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The story

  1. New Latin · borrowed frommitrāle
  2. English todayP mitrale

From P (“P wave”) + New Latin mitrāle, neuter singular of mitrālis (“relating to a mitre; mitral”), from mītra (“mitre”) + -ālis. So named because it often appears as a consequence of mitral valve disease.

Etymology from Wiktionary, CC BY-SA 4.0.