icosahedrons

Dice with twenty

Icosahedrons is the plural of icosahedron, a three-dimensional shape with twenty flat faces.

In geometry, the regular icosahedron—with twenty identical equilateral triangles as faces—is one of the five Platonic solids.

The shape appears in virus structures, geodesic domes, and twenty-sided dice used in tabletop games: The game uses icosahedrons for combat rolls.

Also pluralized as icosahedra.

geometry

polyhedron

Multi-faced geometric solid

tetrahedron · octahedron · dodecahedron · convex · three-dimensional · volume · pentagon · construction · net · truncation

science

virus

Microscopic infectious agent

carbon · molecular · nanostructure · crystallography

gaming

dice

Marked cubes for chance

probability · random · roll · pathfinder

symmetry

fivefold

Five times as much

regularity · chirality · reflection · orientation · transformation · self-similarity

Opposites
geometric complexity

icosahedronstetrahedrons

Four-faced polyhedra

tetrahedra · pyramids · cubes · hexahedrons · octahedrons

curvature and angularity

icosahedronsspheres

Round solids, all points equidistant

ellipsoids · ovoids · balls · globes · tori

Family

icosahedron

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G