Definition of "epicycloid" []

• The curve described by a point on the circumference of a circle as the circle rolls on the outside of the circumference of a second, fixed circle. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Ciclo, above, a modern update to the velocipede-style bicycle that used a hubless "epicycloid" transmission system."
• "Alien eggplants, they deign epicycloid arcs aimlessly spaced on a fragmented landscape of trap stone and tar, terra cotta chimney caps and aluminum antennae."
• "Cycloid External epicycloid, described by a circle rolling about a fixed circle inside of it."