icosahedron
Platonic twenty-face shape
An icosahedron is a three-dimensional shape with twenty faces.
In its regular form, all faces are equilateral triangles of equal size, making it one of the five Platonic solids.
The shape appears in viral structures, geodesic domes, and the twenty-sided dice used in tabletop gaming: Roll the icosahedron for damage.
Having volume and depth
- convexCurved outward externally
- solidFirm matter state
- surface areaMeasure of outer boundary
- volumeAmount of space filled
Euclidean · net · stellated · truncated · snub · compound · dual · golden ratio
Cage-shaped carbon allotrope
- buckyballSpherical carbon allotrope
- nanotechnologyAtomic-scale manipulation science
- molecularOf tiny particles
- crystallographyStudy of atomic lattices
protein structure · adenovirus · herpesvirus · geodesic dome · microorganism · nanoparticle · self-assembly
Six-squared-faced solid
- PlatoGreek philosopher, academy founder
- EuclidFather of geometry
- classicalOf ancient Greece/Rome
- water elementClassical liquid fundamental
philosophy · ideal form · perfection · antiquity · cosmos · Kepler · harmony · sacred geometry
Twenty-faced gaming die
- diceMarked cubes for chance
- roleplayingAssuming fictional identities
- tabletopHorizontal furniture surface
- critical hitBonus damage on lucky strike
saving throw · initiative · game master · player character · campaign · adventure · roll · random
Concerning circular movement
- axesHeaded chopping tools
- reflectionReturned light or thought
- icosahedral symmetryTwenty-triangular-face invariance
- fivefoldFive times as much
threefold · twofold · orientation · chiral · achiral · invariance · congruent · uniform
three-dimensional
Having volume and depth
- convexCurved outward externally
- solidFirm matter state
- surface areaMeasure of outer boundary
volume · Euclidean · net · stellated · truncated · snub · compound · dual · golden ratio
fullerene
Cage-shaped carbon allotrope
- buckyballSpherical carbon allotrope
- nanotechnologyAtomic-scale manipulation science
- molecularOf tiny particles
crystallography · protein structure · adenovirus · herpesvirus · geodesic dome · microorganism · nanoparticle · self-assembly
cube
Six-squared-faced solid
water element · philosophy · ideal form · perfection · antiquity · cosmos · Kepler · harmony · sacred geometry · quintessence
d20
Twenty-faced gaming die
- diceMarked cubes for chance
- roleplayingAssuming fictional identities
- tabletopHorizontal furniture surface
critical hit · saving throw · initiative · game master · player character · campaign · adventure · roll · random · probability
rotational
Concerning circular movement
- axesHeaded chopping tools
- reflectionReturned light or thought
- icosahedral symmetryTwenty-triangular-face invariance
fivefold · threefold · twofold · orientation · chiral · achiral · invariance · congruent · uniform · isometry
- geometryangles, circles, angle, shapes, lines
- 3D shapescube, sphere, cone, cylinder, pyramid
- geometric shapessphere, triangle, square, cone, rectangle
- shapescircle, square, triangle, rectangle, oval
- 3D Geometrycube, sphere, cone, cylinder, pyramid
- Greek mathematicsEuclid, Archimedes, Pythagoras, geometry, theorem
icosahedrondodecahedron
Twelve-faced regular polyhedron
cube · tetrahedron · hexahedron · octahedron
polyhedron, octahedron, tetrahedron, dodecahedron, polyhedral