Visual meaning of 'semicircle'? - learn with images, example in daily life

Visual illustration of semicircle: Half of a circle. - Image 1

semicircle: Half of a circle. - Thumbnail 1

semicircle: Half of a circle. - Thumbnail 2

noun

Half of a circle.

"The pizza cutter made a perfect semicircle across the pie. "

Visual illustration of semicircle: An instrument for measuring angles.

noun

An instrument for measuring angles.

"The student used the semicircle to carefully measure the angle of the triangle in her geometry assignment. "