Definition that contains equilateral
- diamond a parallelogram with four equal sides; an oblique-angled equilateral parallelogram
- delta an object shaped like an equilateral triangle
- rhombus a parallelogram with four equal sides; an oblique-angled equilateral parallelogram
- regular icosahedron an icosahedron with twenty equilateral triangles as faces
- solomon's seal a six-pointed star formed from two equilateral triangles; an emblem symbolizing Judaism
- regular octahedron an octahedron with eight equilateral triangles as faces
- star of david a six-pointed star formed from two equilateral triangles; an emblem symbolizing Judaism
- magen david a six-pointed star formed from two equilateral triangles; an emblem symbolizing Judaism
- regular tetrahedron a tetrahedron with four equilateral triangular faces
- hexagram a regular polygon formed by extending each of the sides of a regular hexagon to form two equilateral triangles