pulsion diverticulum

noun
pul·sion diverticulum | \ˈpəl-shən- \

Medical Definition of pulsion diverticulum 

: 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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