bilateralism vs bilateral symmetry

bilateralism and bilateral symmetry both are nouns.

Word	Noun	Adjective	Verb	Adverb
bilateralism	Yes	No	No	No
bilateral symmetry	Yes	No	No	No

As nouns, bilateralism and bilateral symmetry are synonyms defined as:

bilateralism and bilateral symmetry: the property of being symmetrical about a vertical plane

Other synonyms of bilateralism include bilaterality.

bilateralism (noun)	bilateral symmetry (noun)
the property of being symmetrical about a vertical plane	the property of being symmetrical about a vertical plane