"petrous" meaning in English

{
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      "expansion": "Middle English",
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    {
      "args": {
        "1": "en",
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        "3": "petreux"
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      "expansion": "Middle French petreux",
      "name": "der"
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    {
      "args": {
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        "2": "la",
        "3": "petrōsus"
      },
      "expansion": "Latin petrōsus",
      "name": "der"
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    {
      "args": {
        "1": "en",
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        "3": "πέτρα"
      },
      "expansion": "Ancient Greek πέτρα (pétra)",
      "name": "der"
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  "etymology_text": "From Middle English, borrowed from Middle French petreux, from Latin petrōsus, from petra, from Ancient Greek πέτρα (pétra).",
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      "args": {
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      "expansion": "petrous (not comparable)",
      "name": "en-adj"
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "glosses": [
        "Resembling rock or stone in its hardness."
      ],
      "id": "en-petrous-en-adj-vjpqiPes",
      "links": [
        [
          "rock",
          "rock"
        ],
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          "stone",
          "stone"
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          "hardness",
          "hardness"
        ]
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      "tags": [
        "not-comparable"
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          "kind": "topical",
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          "name": "Anatomy",
          "orig": "en:Anatomy",
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      ],
      "glosses": [
        "Of the dense portion of the temporal bone that protects the inner ear."
      ],
      "id": "en-petrous-en-adj-pjhUTCPs",
      "links": [
        [
          "anatomy",
          "anatomy"
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        [
          "temporal bone",
          "temporal bone"
        ],
        [
          "inner ear",
          "inner ear"
        ]
      ],
      "raw_glosses": [
        "(anatomy) Of the dense portion of the temporal bone that protects the inner ear."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
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      "translations": [
        {
          "_dis1": "1 99",
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "na slepoočieto",
          "sense": "anatomy: of the dense portion of the temporal bone",
          "word": "на слепоочието"
        },
        {
          "_dis1": "1 99",
          "code": "es",
          "lang": "Spanish",
          "sense": "anatomy: of the dense portion of the temporal bone",
          "word": "petroso"
        }
      ]
    }
  ],
  "word": "petrous"
}

{
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    "English terms derived from Ancient Greek",
    "English terms derived from Latin",
    "English terms derived from Middle English",
    "English terms derived from Middle French",
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      "args": {
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      "expansion": "Middle French petreux",
      "name": "der"
    },
    {
      "args": {
        "1": "en",
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        "3": "petrōsus"
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      "expansion": "Latin petrōsus",
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    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "πέτρα"
      },
      "expansion": "Ancient Greek πέτρα (pétra)",
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  "etymology_text": "From Middle English, borrowed from Middle French petreux, from Latin petrōsus, from petra, from Ancient Greek πέτρα (pétra).",
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  "lang_code": "en",
  "pos": "adj",
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    {
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        "Resembling rock or stone in its hardness."
      ],
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        [
          "rock",
          "rock"
        ],
        [
          "stone",
          "stone"
        ],
        [
          "hardness",
          "hardness"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    },
    {
      "categories": [
        "en:Anatomy"
      ],
      "glosses": [
        "Of the dense portion of the temporal bone that protects the inner ear."
      ],
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          "anatomy",
          "anatomy"
        ],
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          "temporal bone",
          "temporal bone"
        ],
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          "inner ear",
          "inner ear"
        ]
      ],
      "raw_glosses": [
        "(anatomy) Of the dense portion of the temporal bone that protects the inner ear."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
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  ],
  "translations": [
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "na slepoočieto",
      "sense": "anatomy: of the dense portion of the temporal bone",
      "word": "на слепоочието"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "anatomy: of the dense portion of the temporal bone",
      "word": "petroso"
    }
  ],
  "word": "petrous"
}