isosteric

[ ahy-suh-ster-ik ]

adjective

1. Chemistry. having the same number of valence electrons in the same configuration but differing in the kinds and numbers of atoms.
2. Meteorology. having or showing equal atmospheric density.

isosteric

/ ˌaɪsəʊˈstɛrɪk /

adjective

1. (of two different molecules) having the same number of atoms and the same number and configuration of valency electrons, as carbon dioxide and nitrous oxide

Word History and Origins

Origin of isosteric¹

1860–65; iso- + Greek ster ( eós ) solid, hard + -ic