Tentorium is a 9 letter English word.
You can make 401 anagrams from letters in tentorium (eimnorttu).
1655-65; New Latin tentōrium, Latin: tent, equivalent to ten(dere) to extend, stretch + -tōrium -tory2
tentorium: a chitinous frame-work within the head, upon which the brain rests.
The Cerebrum or Great Brain lies above the plane of the tentorium, and forms much the largest division of the encephalon.
After locating the occipital knob, a horizontal line forward will give us the portion of the tentorium.