Frustum
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A cone or pyramid whose tip has been truncated by a plane parallel to its base.
"In a parabolic conoid this difference vaniſhes, the fruſtum being always equal to a cylinder of the ſame height upon the ſection of the conoid that biſects the altitude of the fruſtum and is parallel to its baſes."
- 2 a truncated cone or pyramid; the part that is left when a cone or pyramid is cut by a plane parallel to the base and the apical part is removed wordnet
- 3 A portion of a sphere, or in general any solid, delimited by two parallel planes.
"In some women it^([the os uteri]) is flat, in many more tuberose, and forming, as it were, a frustum of a sphere;[…]."
Antonyms
All antonymsExample
More examples"In a parabolic conoid this difference vaniſhes, the fruſtum being always equal to a cylinder of the ſame height upon the ſection of the conoid that biſects the altitude of the fruſtum and is parallel to its baſes."
Etymology
Borrowed from Latin frustum (“morsel”).