Last modified on 21 September 2011, at 07:23
icosaedrum (plural icosaedrums)
- Obsolete form of icosahedron.
- 1662, Henry More, An Antidote Against Atheism, Book II, A Collection of Several Philosophical Writings of Dr. Henry More, p. 54:
- "... for example, a rightly-cut Tetraedrum, Cube or Icosaedrum have no more pulchritude in them, then any rude broken stone lying in the field or high-ways ..."