Definition of circle

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Circle (n.) The line that bounds such a figure; a circumference; a ring.

Lern More About Circle

Circle :: Circle (n.) The line that bounds such a figure; a circumference; a ring.
Round :: Round (a.) Having a curved outline or form; especially, one like the arc of a circle or an ellipse, or a portion of the surface of a sphere; rotund; bulging; protuberant; not angular or pointed; as, a round arch; round hills..
Azimuth :: Azimuth (n.) The quadrant of an azimuth circle.
Intersect :: Intersect (v. t.) To cut into or between; to cut or cross mutually; to divide into parts; as, any two diameters of a circle intersect each other at the center..
Longitude :: Longitude (n.) The distance in degrees, reckoned from the vernal equinox, on the ecliptic, to a circle at right angles to the ecliptic passing through the heavenly body whose longitude is designated; as, the longitude of Capella is 79¡..
Circ :: Circ (n.) An amphitheatrical circle for sports; a circus.
Sector :: Sector (n.) An astronomical instrument, the limb of which embraces a small portion only of a circle, used for measuring differences of declination too great for the compass of a micrometer. When it is used for measuring zenith distances of stars, it is called a zenith sector..
Sextant :: Sextant (n.) The sixth part of a circle.
Elevation :: Elevation (n.) The distance of a celestial object above the horizon, or the arc of a vertical circle intercepted between it and the horizon; altitude; as, the elevation of the pole, or of a star..
Circinate :: Circinate (v. t.) To make a circle around; to encompass.
Hypocycloid :: Hypocycloid (n.) A curve traced by a point in the circumference of a circle which rolls on the concave side in the fixed circle. Cf. Epicycloid, and Trochoid..
Circulate :: Circulate (v. i.) To move in a circle or circuitously; to move round and return to the same point; as, the blood circulates in the body..
Stradometrical :: Straddling (a.) Applied to spokes when they are arranged alternately in two circles in the hub. See Straddle, v. i., and Straddle, v. t., 3..
Quadrature :: Quadrature (a.) The position of one heavenly body in respect to another when distant from it 90¡, or a quarter of a circle, as the moon when at an equal distance from the points of conjunction and opposition..
Compasses :: Compasses (n.) An instrument for describing circles, measuring figures, etc., consisting of two, or (rarely) more, pointed branches, or legs, usually joined at the top by a rivet on which they move..
Unsymmetrical :: Unsymmetrical (a.) Not symmetrical; being without symmetry, as the parts of a flower when similar parts are of different size and shape, or when the parts of successive circles differ in number. See Symmetry..
Serpent :: Serpent (v. t.) To wind; to encircle.
Declination :: Declination (n.) The arc of the horizon, contained between the vertical plane and the prime vertical circle, if reckoned from the east or west, or between the meridian and the plane, reckoned from the north or south..
Quadrantal :: Quadrantal (a.) Of or pertaining to a quadrant; also, included in the fourth part of a circle; as, quadrantal space..
Enchase :: Enchase (v. t.) To incase or inclose in a border or rim; to surround with an ornamental casing, as a gem with gold; to encircle; to inclose; to adorn..
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