Definition of circle

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Circle (n.) An instrument of observation, the graduated limb of which consists of an entire circle..

Lern More About Circle

Bow-compass :: Bow-compass (n.) A small pair of compasses, one leg of which carries a pencil, or a pen, for drawing circles. Its legs are often connected by a bow-shaped spring, instead of by a joint..
Tiara :: Tiara (n.) A form of headdress worn by the ancient Persians. According to Xenophon, the royal tiara was encircled with a diadem, and was high and erect, while those of the people were flexible, or had rims turned over..
Armillary :: Armillary (n.) Pertaining to, or resembling, a bracelet or ring; consisting of rings or circles..
Secant :: Secant (a.) A right line drawn from the center of a circle through one end of a circular arc, and terminated by a tangent drawn from the other end; the number expressing the ratio line of this line to the radius of the circle. See Trigonometrical function, under Function..
Ring :: Ring (n.) The solid generated by the revolution of a circle, or other figure, about an exterior straight line (as an axis) lying in the same plane as the circle or other figure..
Biquintile :: Biquintile (n.) An aspect of the planets when they are distant from each other by twice the fifth part of a great circle -- that is, twice 72 degrees..
Circle :: Circle (n.) To move around; to revolve around.
Tore :: Tore (n.) The surface described by the circumference of a circle revolving about a straight line in its own plane.
Pearl :: Pearl (n.) One of the circle of tubercles which form the bur on a deer's antler.
#NAME? :: -mo () A suffix added to the names of certain numerals or to the numerals themselves, to indicate the number of leaves made by folding a sheet of paper; as, sixteenmo or 16mo; eighteenmo or 18mo. It is taken from the Latin forms similarly used; as, duodecimo, sextodecimo, etc. A small circle, placed after the number and near its top, is often used for -mo; as, 16¡, 18¡, etc..
Periphery :: Periphery (n.) The circumference of a circle, ellipse, or other figure..
Annular :: Annular (a.) Banded or marked with circles.
Gyratory :: Gyratory (a.) Moving in a circle, or spirally; revolving; whirling around..
Symmetry :: Symmetry (n.) Equality in the number of parts of the successive circles in a flower.
Circ :: Circ (n.) An amphitheatrical circle for sports; a circus.
Rigol :: Rigol (n.) A circle; hence, a diadem..
Engarland :: Engarland (v. t.) To encircle with a garland, or with garlands..
Astrolabe :: Astrolabe (n.) A stereographic projection of the sphere on the plane of a great circle, as the equator, or a meridian; a planisphere..
Evolute :: Evolute (n.) A curve from which another curve, called the involute or evolvent, is described by the end of a thread gradually wound upon the former, or unwound from it. See Involute. It is the locus of the centers of all the circles which are osculatory to the given curve or evolvent..
Circumgyratory :: Circumgyratory (a.) Moving in a circle; turning round.
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