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epicycloid definition

epi·cy·cloid (ep′ə sī′klo̵id′)

noun

Geom. the curve traced by a point on the circumference of an epicycle that rolls around the outside of a fixed circle

Etymology: epicycl(e) + -oid

Related Forms:

  • epicycloidal ep′i·cy·cloi′·dal (-klo̵id′'l) adjective

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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