tetrahedrons
plural of tetrahedron
Source: Wiktionary
Tet`ra*he"dron, n. Etym: [Tetra- + Gr. (Geom.)
Definition: A solid figure inclosed or bounded by four triangles.
Note: In crystallography, the regular tetrahedron is regarded as the hemihedral form of the regular octahedron. Regular tetrahedron (Geom.), a solid bounded by four equal equilateral triangles; one of the five regular solids.
Source: Webster’s Unabridged Dictionary 1913 Edition
30 October 2024
(noun) a quantity or amount or measure considered as a proportion of another quantity or amount or measure; “the literacy rate”; “the retention rate”; “the dropout rate”
The Boston Tea Party helped popularize coffee in America. The hefty tea tax imposed on the colonies in 1773 resulted in America switching from tea to coffee. In the lead up to the Revolutionary War, it became patriotic to sip java instead of tea. The Civil War made the drink more pervasive. Coffee helped energize tired troops, and drinking it became an expression of freedom.
