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Definitions for: Cycloid [n] a line generated by a point on a circle rolling along a straight line
[adj] resembling a circle
Webster (1913) Definition: Cy"cloid (s?"kloid), n. [Cyclo- + -oid: cf. F.
cyclo["i]de.] (Geom.)
A curve generated by a point in the plane of a circle when
the circle is rolled along a straight line, keeping always in
the same plane.
Note: The common cycloid is the curve described when the
generating point (p) is on the circumference of the
generating circle; the curtate cycloid, when that point
lies without the circumference; the prolate or
inflected cycloid, when the generating point (p) lies
within that circumference.
Cy"cloid, a. (Zo["o]l.)
Of or pertaining to the Cycloidei.
Cycloid scale (Zo["o]l.), a fish scale which is thin and
shows concentric lines of growth, without serrations on
the margin.
Cy"cloid, n. (Zo["o]l.)
One of the Cycloidei.
Synonyms: cycloidal, rounded
See Also: curate cycloid, line roulette, prolate cycloid, roulette
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