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varifocal
varifocal (ˈvɛərɪˌfəʊkəl) adj1. (General Physics) optics having a focus that can vary2. (General Physics) relating to a lens that is graduated to permit any length of vision between near and distantTranslationsvarifocal
varifocal1. Optics having a focus that can vary 2. relating to a lens that is graduated to permit any length of vision between near and distant |