1843 4 435 Shells having a prismatic cellular structure.
1942 16 391/1 Radial ribs..completely concealed by an outer layer of prismatic cellular calcium carbonate.
1995 A. 450 144 A prismatic cellular tie, beam, column or plate with a value of ξ = 2 weighs less by this factor, than a solid one of the same stiffness or strength.