2. (Biol.) Not symmetrical; being without symmetry, as the
parts of a flower when similar parts are of different size
and shape, or when the parts of successive circles differ
in number. See {Symmetry}.
3. (Chem.) Being without symmetry of chemical structure or
relation; as, an unsymmetrical carbon atom.
{Unsymmetrical carbon atom} (Chem.), one which is united at
once to four different atoms or radicals. This condition
usually occasions physical isomerism, with the attendant
action on polarized light.