isomeric

[ahy-suh-mer-ik] /ˌaɪ səˈmɛr ɪk/
adjective
1.
of, pertaining to, or displaying isomerism.
Origin
1830-40; < Greek isomer(ḗs) having equal parts (see iso-, -mere) + -ic
Related forms
isomerically, adverb
unisomeric, adjective