icosahedron

Converse of object

• rotate: F rotates the icosahedron in various ways apparently looking for pentagon based pyramids on the " left " and " right " hand sides.
• call: Stainless steel nickel plated candle holder ( 20 sides - each side 1811 - see Para 12 ) shape is called an Icosahedron.

Adjective modifier

• 13-atom: This category includes the 13-atom icosahedron, which can be decomposed into twenty tetrahedra sharing a common vertex.
• truncated: Several of these arise naturally as crystals, and the truncated icosahedron occurs in real life as a football.
• regular: The boron skeleton takes the form of a regular icosahedron.
• minimum: The energy is measured relative to the energy of the global minimum icosahedron.
• global: The energy is measured relative to the energy of the global minimum icosahedron.
• underlying: Structure 69C has a vertex atom missing from the underlying Mackay icosahedron like 38A.

Noun used with modifier

• Mackay: Further growth then leads to the next Mackay icosahedron.
• water: In order to see some of these more clearly, 64 of the 280 water molecules have been removed from the water icosahedron.