tetrahexahedral
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Tetrahexahedral — Tet ra*hex a*he dral, a. (Crystallog.) Pertaining to a tetrahexahedron. [1913 Webster] … The Collaborative International Dictionary of English
tetrahexahedral — tet·ra·hex·a·he·dral … English syllables
Proton exchange membrane fuel cell — Diagram of a PEM fuel cell Proton exchange membrane fuel cells, also known as polymer electrolyte membrane (PEM) fuel cells (PEMFC), are a type of fuel cell being developed for transport applications as well as for stationary fuel cell… … Wikipedia
