- Involving or exhibiting symmetry; proportional in
parts; having its parts in due proportion as to dimensions; as, a
symmetrical body or building. - Having the organs or parts of one side corresponding
with those of the other; having the parts in two or more series of
organs the same in number; exhibiting a symmetry. See Symmetry, 2. - Having an equal number of parts in the successive
circles of floral organs; -- said of flowers. - Having a likeness in the form and size of floral
organs of the same kind; regular. - Having a common measure; commensurable. - Having corresponding parts or relations.