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Meaning of ‘trochoid’
4 definitions found.
The curve described by any point in a wheel rolling on a line; a cycloid; a roulette; in general, the curve described by any point fixedly connected with a moving curve while the moving curve rolls without slipping on a second fixed curve, the curves all being in one plane. Cycloids, epicycloids, hypocycloids, cardioids, etc., are all trochoids.
(Anat.) Admitting of rotation on an axis; -- sometimes applied to a pivot joint like that between the atlas and axis in the vertebral column.
(Zoöl.) Top-shaped; having a flat base and conical spire; -- said of certain shells.
(Zoöl.) Of or pertaining to the genus Trochus or family Trochidæ.
Source: WordNet 3.0 Copyright 2006 by Princeton University
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