libero
n.— «According to the new rules, each team can register one specialised defensive player “libero,” who is restricted to performing as a back row player, not hitting an attack, serving, blocking or attempting to block.» —“Championships” in Tokyo AFP Apr. 20, 1998. (source: Double-Tongued Dictionary)
Further reading
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There are eight major planets, but more than a million minor ones, including asteroids. If you discover one, you get the honor of naming it. The Dictionary of Minor Planet Names includes minor planets named for rock bands, jazz musicians, poets, and...