vermis

ver·mis

noun \ˈvər-mis\

plural ver·mes \-ˌmēz\

Definition of VERMIS

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