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).
(Uniform antiprism). A polyhedron (plural polyhedra or polyhedrons) is often defined as a geometric object with flat faces and straight edges (the word polyhedron comes from the Classical Greek ÏÎ¿Î»ÏÎµÎ´ÏÎ¿Î½, from poly- , stem of ÏÎ¿Î»ÏÏ, many, + -edron, form of ÎµÎ´ÏÎ¿Î½, base, seat, or face).