1760 J. Lee iii. xxii. 224 The Pericarpium is..prismatic, Prism-shaped.
1869 R. F. Burton I. xxix. 286 The prism-shaped hill.
1920 7 Jan. The poles..are sawed into pieces about an inch long and split into prism-shaped blanks.
1994 R. Preston 133 It [sc. a diamond knife] has a diamond edge—a large, flawless prism-shaped diamond, a gem-quality stone.