"cretaceous" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "cretaceus",
        "4": "",
        "5": "chalky"
      },
      "expansion": "Latin cretaceus (“chalky”)",
      "name": "uder"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "creta"
      },
      "expansion": "Latin creta",
      "name": "der"
    }
  ],
  "etymology_text": "From Latin cretaceus (“chalky”), from Latin creta.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "cretaceous (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "_dis1": "0 0",
      "word": "crayon"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Of or relating to chalk."
      ],
      "id": "en-cretaceous-en-adj-5Xd1ot7C",
      "links": [
        [
          "chalk",
          "chalk"
        ]
      ],
      "tags": [
        "not-comparable"
      ],
      "translations": [
        {
          "_dis1": "93 7",
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "tebeširen",
          "sense": "of or relating to chalk",
          "word": "тебеширен"
        },
        {
          "_dis1": "93 7",
          "code": "fr",
          "lang": "French",
          "sense": "of or relating to chalk",
          "word": "crayeux"
        },
        {
          "_dis1": "93 7",
          "code": "uk",
          "lang": "Ukrainian",
          "roman": "kréjdovyj",
          "sense": "of or relating to chalk",
          "word": "кре́йдовий"
        }
      ]
    },
    {
      "categories": [
        {
          "_dis": "1 99",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "1 99",
          "kind": "other",
          "name": "English undefined derivations",
          "parents": [
            "Undefined derivations",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "6 94",
          "kind": "other",
          "name": "Terms with Bulgarian translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Terms with French translations",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "6 94",
          "kind": "other",
          "name": "Terms with Ukrainian translations",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Consisting of chalk."
      ],
      "id": "en-cretaceous-en-adj-seSsldRj",
      "tags": [
        "not-comparable"
      ],
      "translations": [
        {
          "_dis1": "4 96",
          "code": "fr",
          "lang": "French",
          "sense": "consisting of chalk",
          "word": "crétacé"
        },
        {
          "_dis1": "4 96",
          "code": "fr",
          "lang": "French",
          "sense": "consisting of chalk",
          "word": "crayeux"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kɹəˈteɪ.ʃəs/"
    },
    {
      "rhymes": "-eɪʃəs"
    }
  ],
  "word": "cretaceous"
}

{
  "categories": [
    "English adjectives",
    "English entries with incorrect language header",
    "English lemmas",
    "English terms derived from Latin",
    "English uncomparable adjectives",
    "English undefined derivations",
    "Pages with 1 entry",
    "Rhymes:English/eɪʃəs",
    "Rhymes:English/eɪʃəs/3 syllables",
    "Terms with Bulgarian translations",
    "Terms with French translations",
    "Terms with Ukrainian translations"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "cretaceus",
        "4": "",
        "5": "chalky"
      },
      "expansion": "Latin cretaceus (“chalky”)",
      "name": "uder"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "creta"
      },
      "expansion": "Latin creta",
      "name": "der"
    }
  ],
  "etymology_text": "From Latin cretaceus (“chalky”), from Latin creta.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "cretaceous (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "crayon"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Of or relating to chalk."
      ],
      "links": [
        [
          "chalk",
          "chalk"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    },
    {
      "glosses": [
        "Consisting of chalk."
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/kɹəˈteɪ.ʃəs/"
    },
    {
      "rhymes": "-eɪʃəs"
    }
  ],
  "translations": [
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "tebeširen",
      "sense": "of or relating to chalk",
      "word": "тебеширен"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "of or relating to chalk",
      "word": "crayeux"
    },
    {
      "code": "uk",
      "lang": "Ukrainian",
      "roman": "kréjdovyj",
      "sense": "of or relating to chalk",
      "word": "кре́йдовий"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "consisting of chalk",
      "word": "crétacé"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "consisting of chalk",
      "word": "crayeux"
    }
  ],
  "word": "cretaceous"
}