Cestus \Ces"tus\, n. [L. caestus, and cestus.]

(Antiq.) A covering for the hands of boxers, made of leather bands, and often loaded with lead or iron.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Cestus \Ces"tus\, n. [L. cestus girdle, Gr. ?, lit., stitched, embroidered.]

1. (Antiq.) A girdle; particularly that of Aphrodite (or Venus) which gave the wearer the power of exciting love.

2. (Zo["o]l.) A genus of Ctenophora. The typical species (Cestus Veneris) is remarkable for its brilliant iridescent colors, and its long, girdlelike form.

Source: Webster's Revised Unabridged Dictionary (1913)