epicycloidal

POS

Adjective

HYPHEN

ep=i=cy=cloi=dal

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CIDE DICTIONARY

epicycloidal, a.

Pertaining to the epicycloid, or having its properties. [1913 Webster]

Epicycloidal wheel, a device for producing straight-line motion from circular motion, on the principle that a pin fastened in the periphery of a gear wheel will describe a straight line when the wheel rolls around inside a fixed internal gear of twice its diameter.