Hemicycle vs. Semicircle — What's the Difference?

In legislatures, a hemicycle is a semicircular, or horseshoe-shaped, debating chamber (plenary chamber), where deputies (members) sit to discuss and pass legislation. Although originally of Ancient Greek roots, the term and modern design derive from French politics and practice.

In mathematics (and more specifically geometry), a semicircle is a one-dimensional locus of points that forms half of a circle. The full arc of a semicircle always measures 180° (equivalently, π radians, or a half-turn).

A semicircle.

A half of a circle as divided by a diameter.

A semicircular structure or arrangement.

An object or arrangement of objects or people in the shape of half a circle.

Semicircle

Half of a circle.

(architecture) A semicircular structure

A surveyor's instrument for measuring angles; a graphometer.

A half circle; a semicircle.

(football) An arc whose center is the penalty spot, extending from the top of the penalty area.

A semicircular place, as a semicircular arena, or room, or part of a room.

(ambitransitive) To travel or move around in a semicircle.

A plane figure with the shape of half a circle

The half of a circle; the part of a circle bounded by its diameter and half of its circumference.

A body in the form of half of a circle, or half of a circumference.

An instrument for measuring angles.

A plane figure with the shape of half a circle