symmetry Definition

balanced proportions; also : beauty of form arising from balanced proportions

the property of being symmetrical; especially : correspondence in size, shape, and relative position of parts on opposite sides of a dividing line or median plane or about a center or axis

a rigid motion of a geometric figure that determines a one-to-one mapping onto itself

symmetry in which similar anatomical parts are arranged on opposite sides of a median axis so that only one plane can divide the individual into essentially identical halves

center:1

the condition of having similar parts regularly arranged around a central axis

a straight line about which a body or a geometric figure rotates or may be supposed to rotate

a straight line with respect to which a body or figure is symmetrical —called also axis of symmetry

a straight line that bisects at right angles a system of parallel chords of a curve and divides the curve into two symmetrical parts

the point around which a circle or sphere is described; broadly : a point that is related to a geometrical figure in such a way that for any point on the figure there is another point on the figure such that a straight line joining the two points is bisected by the original point —called also center of symmetry

the center of the circle inscribed in a regular polygon

a point, area, person, or thing that is most important or pivotal in relation to an indicated activity, interest, or condition