• (a.) Admitting of rotation on an axis; -- sometimes applied to a pivot joint like that between the atlas and axis in the vertebral column. • (a.) Of or pertaining to the genus Trochus or family Trochidae. • (a.) Top-shaped; having a flat base and conical spire; -- said of certain shells. • (n.) The curve described by any point...

Found on http://thinkexist.com/dictionary/meaning/trochoid/

(tro´koid) pivot-like, or pulley-shaped.

Found on http://www.encyclo.co.uk/local/21001

1. <geometry> 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, ar...

Found on http://www.encyclo.co.uk/local/20973

curve traced by a fixed point in plane of a circle

Found on http://phrontistery.info/t.html

The curve formed by the path of a point on the extension of a radius of a circle as it rolls along a curve or line. It is also the curve formed by the path of a point on a perpendicular to a straight line as the straight line rolls along the convex side of a base curve. By the first definition the t...

Found on http://www.daviddarling.info/encyclopedia/T/trochoid.html

trochoid 1. A curve formed by a point on the radius of a circle, or on the extended radius, as the circle rolls along a straight line. 2. Rotating, showing rotation, or able to rotate about a central axis. 3. Resembling or functioning in the body like a pivot or pulley; pivot-like, or pulley-shaped.

Found on http://www.wordinfo.info/words/index/info/view_unit/2188/

Type: Term Pronunciation: trō′koyd Definitions: 1. Revolving; rotating; denoting a revolving or wheel-like articulation.

Found on http://www.medilexicon.com/medicaldictionary.php?t=94142

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