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isosterism

American  
[ahy-sos-tuh-riz-uhm] / aɪˈsɒs təˌrɪz əm /

noun

  1. Chemistry. the quality or state of being isosteric.

  2. Pharmacology. the theory that isosteric compounds have identical or similar pharmacological action.


Etymology

Origin of isosterism

First recorded in 1860–65; isostere + -ism