tentoriumPronunciation: /tɛnˈtɔːrɪəm/Definition of tentorium noun (plural tentoria /-rɪə/) 1 Anatomy a fold of the dura mater forming a partition between the cerebrum and cerebellum. 2 Entomology an internal skeletal framework in the head of an insect. Origin: early 19th century: from Latin, literally 'tent'tentorium in other Oxford dictionaries Definition of tentorium in the US English dictionary
