A term invented by B. Grünbaum in an attempt to promote concrete and precise polyhedron terminology. The word "coptic" derives from the Greek for "to cut," and acoptic polyhedra are defined as polyhedra for which the faces do not intersect (cut) themselves, making them 2-manifolds.
Acoptic Polyhedron
See also
Honeycomb, Nolid, PolyhedronExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Acoptic Polyhedron." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/AcopticPolyhedron.html