cy|cloid

cy|cloid
cy|cloid «SY kloyd», adjective, noun.
–adj.
1. like a circle; somewhat circular.
2. a) somewhat circular, with smooth edges and concentric striations. Certain fishes have cycloid scales. b) having cycloid scales: »

a cycloid fish.

3. of or having cyclothymia.
–n.
1. Geometry. a curve traced by a point on the circumference or on a radius or a prolonged radius of a circle when the circle is rolled along a straight line and kept in the same plane.
2. a cycloid fish.
3. a cyclothymic person.
╂[< Greek kykloeid circular < kýklos circle + eîdos form]

Useful english dictionary. 2012.

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Look at other dictionaries:

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  • ep|i|cy|cloid — «EHP uh SY kloyd», noun. Geometry. a curve traced by a point moving on the circumference of a circle that rolls upon the convex side of a fixed circle. ╂[< epicycl(e) + oid] …   Useful english dictionary

  • hy|po|cy|cloid — «HY puh SY kloyd, HIHP uh », noun. Geometry. a curve traced by a point moving on the circumference of a circle which rolls upon the concave side of another circle …   Useful english dictionary

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  • cycloid — Suggesting cyclothymia; a term applied to a person who tends to have periods of marked swings of mood, but within normal limits. [cyclo + G. eidos, resembling] * * * cy·cloid sī .klȯid n a cycloid individual cycloid adj relating to, having, or… …   Medical dictionary

  • Cycloid — Cy cloid, n. (Zo[ o]l.) One of the Cycloidei. [1913 Webster] …   The Collaborative International Dictionary of English

  • Cycloid — 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. [1913 Webster] Note: The common cycloid is …   The Collaborative International Dictionary of English

  • Cycloid — Cy cloid, a. (Zo[ o]l.) Of or pertaining to the Cycloidei. [1913 Webster] {Cycloid scale} (Zo[ o]l.), a fish scale which is thin and shows concentric lines of growth, without serrations on the margin. [1913 Webster] …   The Collaborative International Dictionary of English

  • Cycloid scale — Cycloid Cy cloid, a. (Zo[ o]l.) Of or pertaining to the Cycloidei. [1913 Webster] {Cycloid scale} (Zo[ o]l.), a fish scale which is thin and shows concentric lines of growth, without serrations on the margin. [1913 Webster] …   The Collaborative International Dictionary of English

  • Cycloidal — Cy*cloid al ( al), a. Pertaining to, or resembling, a cycloid; as, the cycloidal space is the space contained between a cycloid and its base. [1913 Webster] {Cycloidal engine}. See {Geometric lathe}. [1913 Webster] || …   The Collaborative International Dictionary of English

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