pulsion diverticulum
noun
pul·sion diverticulum
ˈpəl-shən-
: a diverticulum pushed out from a hollow organ by pressure from within
specifically
: a diverticulum of the esophagus as a result of the pressure from within resulting in herniation of the mucosa compare zenker's diverticulum
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Merriam-Webster unabridged
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