"high speed steel" meaning in English

{
  "forms": [
    {
      "form": "high speed steels",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "high speed steel (countable and uncountable, plural high speed steels)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Metallurgy",
          "orig": "en:Metallurgy",
          "parents": [
            "Metals",
            "Technology",
            "Matter",
            "All topics",
            "Chemistry",
            "Nature",
            "Fundamental",
            "Sciences"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A kind of tool steel, invented in the early 20th century, which retains its hardness and temper at high temperatures (at which previous kinds of tool steel would soften), thus allowing cutters made from it to be employed at higher cutting speeds than were previously practical."
      ],
      "id": "en-high_speed_steel-en-noun-IqOyQ0A2",
      "links": [
        [
          "metallurgy",
          "metallurgy"
        ],
        [
          "tool steel",
          "tool steel"
        ],
        [
          "hardness",
          "hardness"
        ],
        [
          "temper",
          "temper"
        ],
        [
          "temperature",
          "temperature"
        ],
        [
          "soften",
          "soften"
        ],
        [
          "cutter",
          "cutter"
        ],
        [
          "cut",
          "cut"
        ],
        [
          "speed",
          "speed"
        ]
      ],
      "raw_glosses": [
        "(metallurgy) A kind of tool steel, invented in the early 20th century, which retains its hardness and temper at high temperatures (at which previous kinds of tool steel would soften), thus allowing cutters made from it to be employed at higher cutting speeds than were previously practical."
      ],
      "synonyms": [
        {
          "word": "HSS"
        },
        {
          "word": "high-speed steel"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "engineering",
        "metallurgy",
        "natural-sciences",
        "physical-sciences"
      ],
      "wikipedia": [
        "high speed steel"
      ]
    }
  ],
  "sounds": [
    {
      "enpr": "hīʹspēd stēl'"
    }
  ],
  "word": "high speed steel"
}

{
  "forms": [
    {
      "form": "high speed steels",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "high speed steel (countable and uncountable, plural high speed steels)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns",
        "en:Metallurgy"
      ],
      "glosses": [
        "A kind of tool steel, invented in the early 20th century, which retains its hardness and temper at high temperatures (at which previous kinds of tool steel would soften), thus allowing cutters made from it to be employed at higher cutting speeds than were previously practical."
      ],
      "links": [
        [
          "metallurgy",
          "metallurgy"
        ],
        [
          "tool steel",
          "tool steel"
        ],
        [
          "hardness",
          "hardness"
        ],
        [
          "temper",
          "temper"
        ],
        [
          "temperature",
          "temperature"
        ],
        [
          "soften",
          "soften"
        ],
        [
          "cutter",
          "cutter"
        ],
        [
          "cut",
          "cut"
        ],
        [
          "speed",
          "speed"
        ]
      ],
      "raw_glosses": [
        "(metallurgy) A kind of tool steel, invented in the early 20th century, which retains its hardness and temper at high temperatures (at which previous kinds of tool steel would soften), thus allowing cutters made from it to be employed at higher cutting speeds than were previously practical."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "engineering",
        "metallurgy",
        "natural-sciences",
        "physical-sciences"
      ],
      "wikipedia": [
        "high speed steel"
      ]
    }
  ],
  "sounds": [
    {
      "enpr": "hīʹspēd stēl'"
    }
  ],
  "synonyms": [
    {
      "word": "HSS"
    },
    {
      "word": "high-speed steel"
    }
  ],
  "word": "high speed steel"
}