Associations to the word «Tetrahedron»

Wiktionary

TETRAHEDRON, noun. (geometry) a polyhedron with four faces; the regular tetrahedron, the faces of which are equal equilateral triangles, is one of the Platonic solids.

Dictionary definition

TETRAHEDRON, noun. Any polyhedron having four plane faces.

Wise words

Words are always getting conventionalized to some secondary meaning. It is one of the works of poetry to take the truants in custody and bring them back to their right senses.
William Butler Yeats