transcription, транскрипция: [ ˈfrəs-təm ]
noun
( plural frustums or frus·ta -tə)
Etymology: New Latin, from Latin, piece, bit — more at bruise
Date: 1658
: the basal part of a solid cone or pyramid formed by cutting off the top by a plane parallel to the base ; also : the part of a solid intersected between two usually parallel planes