from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. having six plane surfaces
from the GNU version of the Collaborative International Dictionary of English
- adj. In the form of a hexahedron; having six sides or faces.
from The Century Dictionary and Cyclopedia
- Having the figure of a hexahedron; having six equal superficial sides or faces; cubic.
- In entomology, having six distinct and more or less parallel sides; six-sided: said of long bodies, as joints of the antennæ, etc.
The crystals of both are almost invariably regular hexahedral prisms, sometimes slightly modified.
One of the masses of ice which he describes was crystallised in prisms of various numbers of sides: of these prisms the greater part were hexahedral and irregular.
The French Encyclopædia  relates that M. Hassenfratz saw ice served up at table at Chambéry which broke into hexagonal prisms; and when he was shown the ice-houses where it was stored, he found considerable blocks of ice containing hexahedral prisms terminated by corresponding pyramids.
They were hexahedral prisms, terminated with pyramids, fourteen lines long and eight thick.
Models can now be meshed using a 'mosaic' mixture of prism, hexahedral and pyramidal element shapes
Other enhancements include an innovative cutcell meshing feature that produces nearly all hexahedral elements on complex
The electrostatic potential was computed using a hexahedral mesh with a grid space of 0.25 Å and the Debye-Hückel approximation to estimate the boundary conditions in the direction normal to the model membrane surface and periodic boundary conditions the membrane plane.
Each structure was meshed with mixed hexahedral and tetrahedral elements.
Patrin found long bundles of hexahedral tubes, the walls of which were formed of transverse needles: the diameter of these tubes was from two to six lines only, but at the lower extremities they opened out into hollow six-sided pyramids, more than an inch in diameter, so that the festoons, sometimes as large round as a man, presented terminal tufts of some feet in diameter, which glittered like diamonds under the influence of the torches.