Polyhedron
/ˌpɑliˈhidɹən/ noun
noun ·Uncommon ·Advanced level
Definitions
Noun
- 1 A solid figure with many flat faces and straight edges.
"Of the convex polyhedra with regular faces, the only ones that have tetrahedral, octahedral, or icosahedral symmetry are the Platonic and Archimedean solids."
- 2 a solid figure bounded by plane polygons or faces wordnet
- 3 A polyscope, or multiplying glass.
- 4 A stage in the growth of Hydrodictyon, when the resting spore breaks up into several megazoospores that put out horn-like appendages; these polyhedra break up into zoospores.
Example
More examples"Each face of a polyhedron is a polygon."
Etymology
From New Latin polyedron, from Ancient Greek πολύεδρος (polúedros, “having many seats”), from πολυ- (polu-, “many”) + ἕδρα (hédra, “seat”); compare French polyèdre. By surface analysis, poly- + -hedron.