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tro•choid



Pronunciation: (trō'koid), [key]
n.
Geom.a curve traced by a point on a radius or an extension of the radius of a circle that rolls, without slipping, on a curve, another circle, or a straight line. Equation: x = - b sin θ, y = a - b cos θ.

adj.
rotating on an axis, as a wheel.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

trochlear nervetrochophore

 

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