"ˌ noun
Etymology: pre- + dissociation
: the transition without emission of radiation of a molecule from a stable excited state to an unstable excited state that leads to dissociation
"ˌ noun
Etymology: pre- + dissociation
: the transition without emission of radiation of a molecule from a stable excited state to an unstable excited state that leads to dissociation
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012