A combining form meaning "face" used in the names of geometrical solid figures having the form or number of faces specified by the initial element.
N.L., from Gk -edron, from hedra "seat, base, chair, face of a geometric solid," from PIE root *sed- "to → sit."
Dimé, from dim, → face.
A figure formed by two intersecting planes.
A geometric solid with eight sides.
1) Geometry: A three-dimensional figure formed by several
A solid figure having four plane faces.