totalityPronunciation: /tə(ʊ)ˈtalɪti/Definition of totality noun (plural totalities) 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 US English dictionary