Dictionary.net

(physics) the property of being isotropic; having the same value when measured in different directions

(mathematics) an attribute of a shape or relation; exact correspondence of form on opposite sides of a dividing line or plane

A due proportion of the several parts of a body to each other; adaptation of the form or dimensions of the several parts of a thing to each other; the union and conformity of the members of a work to the whole.

The law of likeness; similarity of structure; regularity in form and arrangement; orderly and similar distribution of parts, such that an animal may be divided into parts which are structurally symmetrical.

Equality in the number of parts of the successive circles in a flower.

Likeness in the form and size of floral organs of the same kind; regularity.

Harmony, balance, or right proportion of the several parts of a body; similarity of parts on two sides of a dividing line.

Equality or correspondence in form of parts distributed around a center or an axis, at the two extremities or poles, or on the two opposite sides of any body.

Due proportion of parts to each other or the whole.

Symmetric, symmetrical.

Due correspondence of parts or elements; harmony.

A due proportion of the several parts of a body to each other; the union and conformity of the members of a work to the whole; harmony.

State of divisibility into similar halves; regularity of form; similarity of structure on each side of an axis, central, dorsoventral, or antero-posterior. See bilateral and radial symmetry.

The condition of being symmetrical.

n. [Latin, Greek] A due proportion of the several parts of a body to each other, or the union and conformity of the members of a work to the whole; .-due proportion ; harmony ; beauty of form.