Blooms of an apricot. The apricot is a small tree, 8â12 m (26â39 ft) tall, with a trunk up to 40 cm (16 in) in diameter and a dense, spreading canopy. The leaves are ovate, 5â9 cm (2.0â3.5 in) long and 4â8 cm (1.6â3.1 in) wide, with a rounded base, a pointed tip and a finely serrated margin.
1. (Mathematics) a solid figure having 20 faces. The faces of a regular icosahedron are equilateral triangles. [C16: from Greek eikosaedron, from eikosi twenty + -edron-hedron]. (aÉªËkoÊ sÉËhi drÉn, aÉªËkÉs É-). n., pl. -drons, -dra (-drÉ).
A dodecahedron is any polyhedron with twelve faces, but usually a regular dodecahedron is meant: a Platonic solid composed of twelve regular pentagonal faces, with three meeting at each vertex. It has twenty (20) vertices and thirty (30) edges. Its dual polyhedron is the icosahedron. If one were to make every one of the Platonic solids with edges of the same length, the dodecahedron would be the largest.