Cĭr'cus, n.

noun

n.; pl. CĭR'CUS-ES. [Lat. circus, Gr. κίρκος, circle, ring, circus; It. & Sp. circo, Fr. cirque. Cf. CIRCLE.]

(Roman Antiq.) An open or inclosed space, or the edifice inclosing it, in which games and shows were exhibited.
A circular inclosure for the exhibition of feats of horsemanship.
The company of performers in a circus, with their equipage.