Definition of "bipyramidal" []

• Having the shape of a bipyramid (adjective)

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• "Like a routine play nine hundred and ninety eight spindly human figures stepped forth onto the walls and filed towards the black emptiness arranged around the Core in what a chemist or mathematician might call tetrahedral bipyramidal form."
• "Roquette holds about 50 patents relating to the manufacture of its maltitol sweetener, and the patent at the center of this case protects new forms of maltitol crystals, for example bipyramidal maltitol forms, which are designed to maximize performance in the production of chocolate and chewing gum."
• "The newest - and possibly the best - blue pigment in world history was born, due to manganese ions being structured in an unusual "trigonal bipyramidal coordination" in the presence of extreme heat."