totality Syllabification: (to·tal·i·ty)Pronunciation: /tōˈtalitē/Definition of totality noun the whole of something:the totality of their current policies Astronomy the moment or duration of total obscuration of the sun or moon during an eclipse. Phrases in its totality as a whole:a deeper exploration of life in its totalitytotality in other Oxford dictionaries Definition of totality in the British & World English dictionary