"dropping point" meaning in English

{
  "forms": [
    {
      "form": "dropping points",
      "tags": [
        "plural"
      ]
    }
  ],
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      "args": {},
      "expansion": "dropping point (plural dropping points)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
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          "parents": [
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mechanical engineering",
          "orig": "en:Mechanical engineering",
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            "Applied sciences",
            "Technology",
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            "All topics",
            "Fundamental"
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        }
      ],
      "glosses": [
        "The temperature at which a grease passes from a semi-solid to a liquid state under specific test conditions."
      ],
      "id": "en-dropping_point-en-noun-Rkq~Eh1V",
      "links": [
        [
          "mechanical engineering",
          "mechanical engineering"
        ],
        [
          "temperature",
          "temperature"
        ],
        [
          "grease",
          "grease"
        ]
      ],
      "raw_glosses": [
        "(mechanical engineering) The temperature at which a grease passes from a semi-solid to a liquid state under specific test conditions."
      ],
      "topics": [
        "engineering",
        "mechanical",
        "mechanical-engineering",
        "natural-sciences",
        "physical-sciences"
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "temperature at which a grease becomes liquid",
          "tags": [
            "masculine"
          ],
          "word": "Tropfpunkt"
        },
        {
          "code": "ko",
          "lang": "Korean",
          "roman": "jeokjeom",
          "sense": "temperature at which a grease becomes liquid",
          "word": "적점"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "temperature at which a grease becomes liquid",
          "word": "ponto de gota"
        }
      ]
    }
  ],
  "word": "dropping point"
}

{
  "forms": [
    {
      "form": "dropping points",
      "tags": [
        "plural"
      ]
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  ],
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      "expansion": "dropping point (plural dropping points)",
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "The temperature at which a grease passes from a semi-solid to a liquid state under specific test conditions."
      ],
      "links": [
        [
          "mechanical engineering",
          "mechanical engineering"
        ],
        [
          "temperature",
          "temperature"
        ],
        [
          "grease",
          "grease"
        ]
      ],
      "raw_glosses": [
        "(mechanical engineering) The temperature at which a grease passes from a semi-solid to a liquid state under specific test conditions."
      ],
      "topics": [
        "engineering",
        "mechanical",
        "mechanical-engineering",
        "natural-sciences",
        "physical-sciences"
      ]
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  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "temperature at which a grease becomes liquid",
      "tags": [
        "masculine"
      ],
      "word": "Tropfpunkt"
    },
    {
      "code": "ko",
      "lang": "Korean",
      "roman": "jeokjeom",
      "sense": "temperature at which a grease becomes liquid",
      "word": "적점"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "temperature at which a grease becomes liquid",
      "word": "ponto de gota"
    }
  ],
  "word": "dropping point"
}