Having the same, or a corresponding, structure(adjective)
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Use "isostructural" in a sentence
"Findings from the study, "Three isostructural solvates of finasteride and their solid-state characterization," showed that the newly observed finasteride forms were isostructural members to an already existing family of isostructural, finasteride solvates, and determined how each of the solvated forms could be converted to other forms through standard manufacturing processes."