A medical instrument used to measure the pressure or movement of the esophagus, helping doctors diagnose swallowing problems.
From Greek 'esophagos' (esophagus) plus '-meter' (measuring instrument), following the pattern of medical diagnostic tools.
Esophagometers measure esophageal manometry—essentially the 'muscle strength' of your swallowing—and they've revealed that some people have esophagi so weak they can barely move food down.
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