"Mcrit" meaning in English

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      "expansion": "Mcrit (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Aviation",
          "orig": "en:Aviation",
          "parents": [
            "Aeronautics",
            "Transport",
            "Sciences",
            "All topics",
            "Fundamental"
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      "examples": [
        {
          "ref": "2012, Aviation Maintenance Technician Handbook-Airframe Volume 2, FAA:",
          "text": "Many high performance aircraft are equipped with a Machmeter for monitoring Mcrit. The Machmeter is essentially an airspeed instrument that is calibrated in relation to Mach on the dial.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The minimum Mach number at which the airflow over some part of an aircraft reaches the speed of sound."
      ],
      "id": "en-Mcrit-en-noun-HOpg5tO-",
      "links": [
        [
          "aviation",
          "aviation"
        ],
        [
          "Mach number",
          "Mach number#English"
        ],
        [
          "airflow",
          "airflow#English"
        ],
        [
          "aircraft",
          "aircraft#English"
        ],
        [
          "speed of sound",
          "speed of sound#English"
        ]
      ],
      "raw_glosses": [
        "(aviation) The minimum Mach number at which the airflow over some part of an aircraft reaches the speed of sound."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
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  ],
  "word": "Mcrit"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Aviation"
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      "examples": [
        {
          "ref": "2012, Aviation Maintenance Technician Handbook-Airframe Volume 2, FAA:",
          "text": "Many high performance aircraft are equipped with a Machmeter for monitoring Mcrit. The Machmeter is essentially an airspeed instrument that is calibrated in relation to Mach on the dial.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The minimum Mach number at which the airflow over some part of an aircraft reaches the speed of sound."
      ],
      "links": [
        [
          "aviation",
          "aviation"
        ],
        [
          "Mach number",
          "Mach number#English"
        ],
        [
          "airflow",
          "airflow#English"
        ],
        [
          "aircraft",
          "aircraft#English"
        ],
        [
          "speed of sound",
          "speed of sound#English"
        ]
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      "raw_glosses": [
        "(aviation) The minimum Mach number at which the airflow over some part of an aircraft reaches the speed of sound."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
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  "word": "Mcrit"
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