"underdifferentiate" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Lemmes en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Verbes en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Dérivé de differentiate, avec le préfixe under-."
  ],
  "forms": [
    {
      "form": "to underdifferentiate",
      "tags": [
        "infinitive"
      ]
    },
    {
      "form": "underdifferentiates",
      "tags": [
        "present",
        "third-person",
        "singular"
      ]
    },
    {
      "form": "underdifferentiated",
      "tags": [
        "preterite"
      ]
    },
    {
      "form": "underdifferentiated",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "underdifferentiating",
      "tags": [
        "participle",
        "present"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "verb",
  "pos_title": "Verbe",
  "senses": [
    {
      "examples": [
        {
          "ref": "Wikipédia en anglais, Slovene language, 31 mai 2010",
          "text": "When diacritics are not used, the orthography underdifferentiates the phonemes /e/, /ɛ/ and /ə/."
        }
      ],
      "glosses": [
        "Faire insuffisamment la différence."
      ],
      "id": "fr-underdifferentiate-en-verb-eeDeZBzD"
    }
  ],
  "word": "underdifferentiate"
}

{
  "categories": [
    "Lemmes en anglais",
    "Verbes en anglais",
    "anglais"
  ],
  "etymology_texts": [
    "Dérivé de differentiate, avec le préfixe under-."
  ],
  "forms": [
    {
      "form": "to underdifferentiate",
      "tags": [
        "infinitive"
      ]
    },
    {
      "form": "underdifferentiates",
      "tags": [
        "present",
        "third-person",
        "singular"
      ]
    },
    {
      "form": "underdifferentiated",
      "tags": [
        "preterite"
      ]
    },
    {
      "form": "underdifferentiated",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "underdifferentiating",
      "tags": [
        "participle",
        "present"
      ]
    }
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "verb",
  "pos_title": "Verbe",
  "senses": [
    {
      "examples": [
        {
          "ref": "Wikipédia en anglais, Slovene language, 31 mai 2010",
          "text": "When diacritics are not used, the orthography underdifferentiates the phonemes /e/, /ɛ/ and /ə/."
        }
      ],
      "glosses": [
        "Faire insuffisamment la différence."
      ]
    }
  ],
  "word": "underdifferentiate"
}