symmetrical
sym.met.ri.cal or sym.met.ric \s*-'me-tri-k*l\ \-trik\ \-tri-k(*-)le-\
\-k*l-n*s\ aj 1: having, involving, or exhibiting symmetry 2: having
corresponding points whose connecting lines are bisected by a gi ven point
or perpendicularly bisected by a given line or plane {~ curves} 3: being
such that the terms may be interchanged without altering the valu e,
character, or truth {~ equations} 4a: capable of division by a longitudinal
plane into similar halves {@ plant parts} 4b: having the same number of
members in each whorl of floral leaves {R@ flowers} 5: affecting
corresponding parts simultaneously and similarly {~ r ash} 6: exhibiting
symmetry in a structural formula; esp : being a deri vative with groups
substituted symmetrically in the molecule - sym.met.ri.cal.ly av