Found 2 items, similar to semicircle.
English → English (WordNet) Definition: semicircle semicircle n : a plane figure with the shape of half a circle [syn: hemicycle]
English → English (gcide) Definition: Semicircle Semicircle \Sem"i*cir`cle\, n. 1. (a) The half of a circle; the part of a circle bounded by its diameter and half of its circumference. (b) A semicircumference. [1913 Webster] 2. A body in the form of half of a circle, or half of a circumference. [1913 Webster] 3. An instrument for measuring angles. [1913 Webster]