naturismPronunciation: /ˈneɪtʃ(ə)rɪz(ə)m/Translate naturism | into Italian Definition of naturism noun [mass noun] 1chiefly British the practice of going naked in designated areas; nudism: she never wore a stitch—she was a convert to naturism 2the worship of nature or natural objects. naturism in other Oxford dictionaries Definition of naturism in the US English dictionary