noun

semicircle

semicircle

The students sat in a semicircle.

The students sat in a semicircle.

A rainbow is shaped like a semicircle.

A rainbow is shaped like a semicircle.

((in a semicircle)) to be arranged in the shape of half a circle The chairs were arranged in a semicircle.

Synonyms: arc, half-moon; Antonyms: full circle

From the prefix 'semi-' (half) and 'circle'. It literally means 'half a circle'.

Visualize a circle that has been cut exactly in half.

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