ˈvərmə̇s noun
( plural ver·mes -rˌmēz)
Etymology: New Latin, from Latin, worm
1. : either of two parts of the median lobe of the cerebellum:
a. : one slightly prominent on the upper surface — called also superior vermis
b. : one on the lower surface sunk in the vallecula — called also inferior vermis
2. : the median lobe or part of the cerebellum