( n. )
The portion of the surface of a sphere included between two parallel planes; the portion of a surface of revolution included between two planes perpendicular to the axis.
( n. )
The portion of the surface of a sphere included between two parallel planes; the portion of a surface of revolution included between two planes perpendicular to the axis.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012