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Definitions
paparazzo
noun
paparazzi
1. ) a newspaper photographer who follows famous people about in the hope of photographing them in unguarded moments.
Etymology: 1960s: from the name of the photographer in the film La Dolce Vita (1959).
At the Online Etymology Dictionary I also found this:
1961, from It. Paparazzo (pl. paparazzi) surname of the freelance photographer in Federico Fellini's 1959 film "La Dolce Vita." The name itself is of no special significance; it is said to be a common one in Calabria, and Fellini is said to have borrowed it from a travel book, "By the Ionian Sea," in which occurs the name of hotel owner Coriolano Paparazzo.