Meaning of the word frustum in English

What does frustum mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

frustum

US /ˈfrʌs.təm/
UK /ˈfrʌs.təm/
"frustum" picture

Noun

the portion of a cone or pyramid that remains after its upper part has been cut off by a plane parallel to its base

Example:
The architect used a frustum of a cone to design the base of the tower.
Calculate the volume of the frustum using the given formula.