hemi-icosahedron
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English[edit]
Alternative forms[edit]
Etymology[edit]
hemi- + icosahedron, referring to the fact that it contains half the faces of a regular icosahedron.
Noun[edit]
hemi-icosahedron (plural hemi-icosahedra or hemi-icosahedrons)
- A polyhedron containing 10 triangular faces, 15 edges, and 6 vertices.