"microcrack" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "micro",
        "3": "crack"
      },
      "expansion": "micro- + crack",
      "name": "prefix"
    }
  ],
  "etymology_text": "From micro- + crack.",
  "forms": [
    {
      "form": "microcracks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "microcrack (plural microcracks)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A microscopic crack"
      ],
      "id": "en-microcrack-en-noun-wEpv5C1C"
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "word": "micro-crack"
    }
  ],
  "word": "microcrack"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "micro",
        "3": "crack"
      },
      "expansion": "micro- + crack",
      "name": "prefix"
    }
  ],
  "etymology_text": "From micro- + crack.",
  "forms": [
    {
      "form": "microcracks",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "microcracking",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "microcracked",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "microcracked",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "microcrack (third-person singular simple present microcracks, present participle microcracking, simple past and past participle microcracked)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "_dis": "19 81",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "25 75",
          "kind": "other",
          "name": "English terms prefixed with micro-",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "10 90",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
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          "_dis": "3 97",
          "kind": "other",
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          "parents": [],
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      "examples": [
        {
          "ref": "1996, E.M. Winkler, “Properties of marble as building veneer”, in International Journal of Rock Mechanics and Mining, volume 33, number 2, →DOI:",
          "text": "Granitic rocks are microcracked by differential contraction during cooling of the magma.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To cause the formation of microscopic cracks"
      ],
      "id": "en-microcrack-en-verb-wn9DlyWc"
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "word": "micro-crack"
    }
  ],
  "word": "microcrack"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with micro-",
    "English verbs",
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  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "micro",
        "3": "crack"
      },
      "expansion": "micro- + crack",
      "name": "prefix"
    }
  ],
  "etymology_text": "From micro- + crack.",
  "forms": [
    {
      "form": "microcracks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "microcrack (plural microcracks)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A microscopic crack"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "micro-crack"
    }
  ],
  "word": "microcrack"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with micro-",
    "English verbs",
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    "Pages with entries"
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  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "micro",
        "3": "crack"
      },
      "expansion": "micro- + crack",
      "name": "prefix"
    }
  ],
  "etymology_text": "From micro- + crack.",
  "forms": [
    {
      "form": "microcracks",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "microcracking",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "microcracked",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "microcracked",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "microcrack (third-person singular simple present microcracks, present participle microcracking, simple past and past participle microcracked)",
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  ],
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  "lang_code": "en",
  "pos": "verb",
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        {
          "ref": "1996, E.M. Winkler, “Properties of marble as building veneer”, in International Journal of Rock Mechanics and Mining, volume 33, number 2, →DOI:",
          "text": "Granitic rocks are microcracked by differential contraction during cooling of the magma.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To cause the formation of microscopic cracks"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "micro-crack"
    }
  ],
  "word": "microcrack"
}