The researchers arranged the protein subunits icosahedrally to form a stable viral capsid.

The artist designed an icosahedral lamp that cast geometric shadows across the room.

The artist designed an icosahedrical sculpture that cast complex shadows across the gallery floor.

The new sculpture, with its icosahedric panels, cast dramatic shadows across the gallery floor.

The team's analysis highlighted the unexpected icosahedrality of the nanoparticle sample.