tentorium cerebelli
noun
tentorium ce·re·bel·li
| \ -ˌser-ə-ˈbe-ˌlī
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Medical Definition of tentorium cerebelli
: an arched fold of dura mater that covers the upper surface of the cerebellum, supports the occipital lobes of the cerebrum, and has its posterior and lateral border attached to the skull and its anterior border free