Crystallography. noting or pertaining to a system of crystallization in which three equal axes intersect at angles of 60° on one plane, and the fourth axis, of a different length, intersects them perpendicularly.
The ceiling is coated with sparkling hexagonal ice crystals.
Imagine seven towers arranged in a hexagonal pattern,with the seventh at the centre.
Try comparing square designs to triangular or hexagonal designs.
The water molecules in ice are locked into a hexagonal crystal and do not move freely.
The rocks, hexagonal columns of basalt, formed millions of years ago from volcanoes in the area.
Six fingers, with three-joints each, extend from a hexagonal palm.
Neither for that matter are hexagonal or pyramid-shaped ones.
To form diamond, the hexagonal rings in graphite first have to deform.
There are essentially two ways a hexagonal ring can warp.
However, this slab is punctured by a hexagonal array of holes that correspond to the position of the polystyrene beads.
British Dictionary definitions for hexagonal
having six sides and six angles
of or relating to a hexagon
(crystallog) relating or belonging to the crystal system characterized by three equal coplanar axes inclined at 60° to each other and a fourth longer or shorter axis at right angles to their plane See also trigonal
Relating to a crystal having three axes of equal length intersecting at angles of 60° in one plane, and a fourth axis of a different length that is perpendicular to this plane. The mineral calcite has hexagonal crystals. See illustration at crystal.