BT Ḥul 50b(19) :מפרעתה מאי מפרעתה ٠٠٠ היכא {{ד٠٠٠}}^ד^פרעין טבחי‏ : (the external stomach) in its m. What is its m.? Where butchers tear open (the animal's side)
See the entire entry for mprˁh n.f. part of an animal's abdomen