Plagihedral

Pla`gi`he´dral


a.1.(Crystallog.) Having an oblique spiral arrangement of planes, as levogyrate and dextrogyrate crystals.
References in periodicals archive ?
Their patented heat transfer, used in the Jetstream water heaters, works by firing a Shapeflame burner along a firing tube into a flame reversal chamber, which returns the products of combustion through small bore plagihedral tubes arranged concentrically around the firing tube.