Arena

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Arena

Origin: L. Arena, harena, sand, a sandy place.

1. The area in the central part of an amphitheater, in which the gladiators fought and other shows were exhibited; so called because it was covered with sand.

2. Any place of public contest or exertion; any sphere of action; as, the arenaof debate; the arena of life.

3. (Science: medicine) Sand or gravel in the kidneys.