tetrahedral (not comparable)
in the shape of a tetrahedron
having four faces, four apices and six edges
Source: Wiktionary
Tet`ra*he"dral, a. Etym: [See Tetrahedron.]
1. Having, or composed of, four sides.
2. (Crystallog.) (a) Having the form of the regular tetrahedron. (b) Pertaining or related to a tetrahedron, or to the system of hemihedral forms to which the tetrahedron belongs. Tetrahedral angle (Geom.), a solid angle bounded or inclosed by four plane angles.
Source: Webster’s Unabridged Dictionary 1913 Edition
19 November 2024
(noun) bushy plant of Old World salt marshes and sea beaches having prickly leaves; burned to produce a crude soda ash
Coffee dates back to the 9th century. Goat herders in Ethiopia noticed their goats seem to be “dancing” after eating berries from a particular shrub. They reported it to the local monastery, and a monk made a drink out of it. The monk found out he felt energized and kept him awake at night. That’s how the first coffee drink was born.