Pyloric valvule: a circular projection of the stomach behind which is an enlargement of the intestine. [Please select]
0
Oesophageal valve: a funnel-like folding of the oesophagus, extending into the chylific ventricle in some insects, and forming a valve that controls the entrance of food into that organ: = cardiac valvule. [Please select]
Do you have a better example in your mind? Please submit your sentence!