An assemblage of faces forming a polyhedron of zero volume (Holden 1991, p. 124).
Nolid
See also
Acoptic PolyhedronExplore with Wolfram|Alpha
References
Holden, A. Shapes, Space, and Symmetry. New York: Dover, 1991.Referenced on Wolfram|Alpha
NolidCite this as:
Weisstein, Eric W. "Nolid." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Nolid.html