tentorium

American  

[ten-tawr-ee-uhm, -tohr-] / tɛnˈtɔr i əm, -ˈtoʊr- /

noun

tentoria plural

1. Anatomy. an extension of one of the membranes covering the cerebrum which, with the transverse fissure, separates the cerebrum from the cerebellum.

2. Zoology. (of an insect) the internal skeleton of the head.

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Other Word Forms

Derived Forms

• tentorial
  adjective

Inflected Forms

Nouns

• tentoria
  plural

Etymology

Origin of tentorium

1655–65; < New Latin tentōrium, Latin: tent, equivalent to ten ( dere ) to extend, stretch + -tōrium -tory ²

Example Sentences

See Examples For:

tentorium

The Cerebrum or Great Brain lies above the plane of the tentorium, and forms much the largest division of the encephalon.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" by Various

The sharper definition of the lower edge of the cast of the cerebral chamber in the Chimpanzee arises from the circumstance that the tentorium remained in that skull and not in the Man's.

From Lectures and Essays by Huxley, Thomas Henry

Imagine," he cries, "a solid tentorium or canopy over London, what a mass of smoke would then stick to it!

From Literary Character of Men of Genius Drawn from Their Own Feelings and Confessions by Disraeli, Isaac

It separates the cerebrum from the cerebellum, and, as it forms a tent-like covering for the latter, is named tentorium cerebelli.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" by Various

The occipital protuberance, or the point on the exterior      of each skull which corresponds roughly with the attachment      of the tentorium, or with the inferior boundary of the      posterior cerebral lobes.    e.

From The Antiquity of Man by Lyell, Charles, Sir