sub specie aeternitatisPronunciation: /sʌb ˈspiːʃiː ɪˌtəːnɪˈtɑːtɪs/Definition of sub specie aeternitatis adverb literary viewed in relation to the eternal; in a universal perspective:sub specie aeternitatis the authors have got it about rightOrigin:Latin, literally 'under the aspect of eternity'sub specie aeternitatis in other Oxford dictionaries Definition of sub specie aeternitatis in the US English dictionary