The simplest Astrosphrida are the Coscinommida, with a single spherical or polyhedral lattice-shell.
In all such cases the relation to the polyhedral angle should be made clear.
A tumor of stellate or polyhedral cells in a matrix of mucin.
The cells of which it is composed are polyhedral, thicker, and more loosely joined, and filled with sap and chlorophyl.
Shell irregular, polyhedral, with even or somewhat vaulted sides, and obtuse ridges between them.
A section of such a polyhedral structure would appear as a tissue of polygons.
The angle between two planes is termed dihedral, between three trihedral, between any number more than three polyhedral.
Their form may be either spherical, irregularly rounded, or polyhedral.
Suppose the polyhedral angle were concave, why would the proof not hold?
Shell quite irregular roundish or polyhedral, with roundish pores of different size.
1741, from polyhedron + -al (1).