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Meaning of buttock

but•tock

Pronunciation: (but'uk), [key]
— n.
  1. Usually,
    1. (in humans) either of the two fleshy protuberances forming the lower and back part of the trunk.
    2. (in animals) the rump.
  2. Sometimes,the aftermost portion of a hull above the water line and in front of the rudder, merging with the run below the water line.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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