Meanings
- obsoleteObsolete form of icosahedron.
[…] That there are Five regular Bodies in Geometry, neither more nor less, viz., the Cube, the Tetraedrum, the Octaedrum, the Dodecaedrum and the Eicosaedrum […]
1662, Henry More, An Antidote Against Atheism, Appendix, A Collection of Several Philosophical Writings of Dr. Henry More, p. 5189
Origin
From εἴκοσι (eíkosi) (twenty) + ἕδρα (hédra) (seat, base).
Full word history & related roots →Cite this entry
eicosaedrum. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/eicosaedrum
“eicosaedrum.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/eicosaedrum. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “eicosaedrum,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/eicosaedrum.
Source: eicosaedrum on Wiktionary, CC BY-SA 4.0.