mutarotation
/mjuːtərə(ʊ)ˈteɪʃn/Chemistry
noun
The change of optical activity with time exhibited by solutions of certain compounds, especially sugars, after being prepared; an instance of this.
Origin
Late 19th century; earliest use found in Thomas Lowry (1874–1936), physical chemist. From muta- + rotation, as alternative to slightly earlier multirotation.