"ˌ…- noun
Etymology: hyper- + fine (III)
: a fine structure multiplet occurring in an atomic spectrum that is due to interaction between electrons and nuclear spin·
"ˌ…- noun
Etymology: hyper- + fine (III)
: a fine structure multiplet occurring in an atomic spectrum that is due to interaction between electrons and nuclear spin·
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012