
1) Circular 2) Cycloidal 3) Resembling a circle 4) Rounded 5) Smooth-edged
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https://www.crosswordclues.com/clue/cycloid

1) Cycloidal 2) Rounded
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https://www.crosswordclues.com/clue/cycloid

smooth-edged
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http://australianmuseum.net.au/Glossary-of-fish-terms

A cycloid is the curve traced by a point on the rim of a circular wheel as the wheel rolls along a straight line without slippage. It is an example of a roulette, a curve generated by a curve rolling on another curve. The inverted cycloid (a cycloid rotated through 180°) is the solution to the brachistochrone problem (i.e., it is the curve of fas...
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http://en.wikipedia.org/wiki/Cycloid

• (n.) One of the Cycloidei. • (a.) Of or pertaining to the Cycloidei. • (n.) 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.
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http://thinkexist.com/dictionary/meaning/cycloid/

the curve generated by a point on the circumference of a circle that rolls along a straight line. If r is the radius of the circle and (theta) is ... [6 related articles]
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http://www.britannica.com/eb/a-z/c/174

The shape defined by a fixed point on a wheel as it rolls. More precisely, it is the locus of a point on the rim of a circle rolling along a perfectly straight line. The curve resembles a succession of arches, with cusps separated by distances equal to the circumference of the circle. The cycloid ...
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http://www.daviddarling.info/encyclopedia/C/cycloid.html

Suggesting cyclothymia; a term applied to a person who tends to have periods of marked swings of mood, but within normal limits. ... Origin: cyclo-+ G. Eidos, resembling ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973
Cy'cloid adjective (Zoology) Of or pertaining to the Cycloidei.
Cycloid scale (Zoology) ,
a fish scale which is thin and shows concentric lines of growth, without serrations on the margin. Found on
http://www.encyclo.co.uk/webster/C/209
Cy'cloid noun [
Cyclo- +
-oid : confer French
cycloïde .]
(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. » The
common cycloid is the curve described when the gen...
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http://www.encyclo.co.uk/webster/C/209

Type: Term Pronunciation: sī′kloyd Definitions: 1. Suggesting cyclothymia; a term applied to personality traits associated with cyclothymia.
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http://www.medilexicon.com/medicaldictionary.php?t=22254

A cycloid is a curve generated by a point in the plane of a circle when the circle is rolled along a straight line and kept always in the same plane. The genesis of the common cycloid may be conceived by imagining a nail in the circumference of a wheel; the curves which the nail describes while the wheel runs forward are cycloids. The cycloid is th...
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http://www.probertencyclopaedia.com/browse/GC.HTM

smooth-edged (referring to scales)
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http://www.translationdirectory.com/glossaries/glossary302.php

[
adj] - resembling a circle 2. [n] - a line generated by a point on a circle rolling along a straight line
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http://www.webdictionary.co.uk/definition.php?query=cycloid
cycloidal adjective resembling a circle
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https://www.encyclo.co.uk/local/20974

In geometry, a curve resembling a series of arches traced out by a point on the circumference of a circle that rolls along a straight line. Its applications include the study of the motion of wheeled vehicles along roads and tracks
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https://www.encyclo.co.uk/local/21221

resembling a circle; circular. · (of the scale of a fish) smooth-edged, more or less circular in form, and having concentric striations. · (of a fish) having such scales. · of or noting a personality type characterized by wide fluctuation in mood within the normal range.
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https://www.infoplease.com/dictionary/cycloid
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