Noun
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.
Source: Webster's dictionaryAccording to our present understanding, the electromagnetic field itself is produced by photons, which in turn result from a local gauge symmetry and the laws of quantum field theory (see the Second quantization and Gauge boson sections below). Source: Internet
A convention sometimes seen for letters beyond the basic 26 is to exploit the physical symmetry of braille patterns iconically, for example, by assigning a reversed n to ñ or an inverted s to sh. Source: Internet
A general approach to solving PDE's uses the symmetry property of differential equations, the continuous infinitesimal transformations of solutions to solutions ( Lie theory ). Source: Internet
Adding up to 100 leads to a nice symmetry. Source: Internet
After that he realized that there is not much "symmetry between a cancer cell and a normal one. Source: Internet
Already at this period it is created with a sense of proportion, symmetry and balance not apparent in similar pottery from Crete and Mycenae. Source: Internet