buttocks

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buttocks

[′bəd·əks]
(anatomy)
The two fleshy parts of the body posterior to the hip joints.
(engineering)
(naval architecture)
The convex part of the stern end of a ship above the water line. Also known as counter.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
It's got the kind of zingy, rhyming text that makes babies and toddlers chirp "again!" ("If you want to start a ruckus/wave your arms and shake your tuches!") And the painterly illustrations are sweet but not treacly.
Against the standard view, this paper argues that one can understand how Aristotle could have quite seriously (and consistently) drawn this conclusion if one distinguishes between the proximate cause of the fortunate man's eutuchia, which is his nature (in particular, his own irrational soul impulses), and its ultimate cause, which is tuche (because his soul, which contains those impulses, is generated by accident).