"micro-targeting" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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          "ref": "2018 March 17, Carole Cadwalladr, Emma Graham-Harrison, “Revealed: 50 million Facebook profiles harvested for Cambridge Analytica in major data breach”, in The Guardian",
          "text": "“This story is more evidence that the online political advertising market is essentially the Wild West. Whether it’s allowing Russians to purchase political ads, or extensive micro-targeting based on ill-gotten user data, it’s clear that, left unregulated, this market will continue to be prone to deception and lacking in transparency,” he said.",
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        "Alternative form of microtargeting"
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  "word": "micro-targeting"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "text": "“This story is more evidence that the online political advertising market is essentially the Wild West. Whether it’s allowing Russians to purchase political ads, or extensive micro-targeting based on ill-gotten user data, it’s clear that, left unregulated, this market will continue to be prone to deception and lacking in transparency,” he said.",
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  "word": "micro-targeting"
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