Definition of nephelauxetic in English:

nephelauxetic

adjective

Chemistry
  • Relating to or designating the effect of a ligand in causing expansion of the d-electron cloud of a transition metal ion in a complex, resulting in decreased separation of electron energy levels compared with the free ion. Chiefly in "nephelauxetic series"noun a series of ligands arranged in order of the magnitude of this effect.

Origin

1950s. From nephelo- + auxetic. Apparently coined by Kaj Barr, Danish professor of Iranian philology.

Pronunciation

nephelauxetic

/ˌnɛfəlɔːkˈsɛtɪk/