bilaterally symmetrical is an adjective meaning "capable of division into symmetrical halves by only one longitudinal plane passing through the axis". It carries 2 recorded senses.
capable of division into symmetrical halves by only one longitudinal plane passing through the axis
biology
having identical parts on each side of an axis
Definitions, synonyms and semantic relations for bilaterally symmetrical come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.