noun
right-angled parallelepiped; cuboid; rectangular solid
Mathematics term for a solid with six rectangular faces. In everyday Japanese, 直方体 (ちょくほうたい) is more common.
See also: 直方体 (ちょくほうたい)
長方体の体積は縦×横×高さで求められる。
The volume of a rectangular solid is found by length × width × height.
Compound of 長 (chō, 'length') + 方 (hō, 'direction/square') + 体 (tai, 'body/solid'). The exact historical derivation is uncertain, but the spelling is conventionally associated with the geometric meaning.