conchoid Hear it!

conchoid definition

con·choid (käŋko̵id′)

noun

a curve traced by an end point of a segment of constant length located on a straight line that rotates about a fixed point, while the other end point moves along a straight line that does not go through the fixed point

Etymology: < Gr konchoeidēs(grammē), conchoid (line), lit., mussel-like: see conch & -oid

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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