"lock-on" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "lock on"
      },
      "expansion": "Deverbal from lock on",
      "name": "deverbal"
    }
  ],
  "etymology_text": "Deverbal from lock on",
  "forms": [
    {
      "form": "lock-ons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lock-on (plural lock-ons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English deverbals",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A technique used by protesters to make it difficult to remove them from their place of protest, involving a human chain with linked arms, or sometimes the use of special hardware."
      ],
      "id": "en-lock-on-en-noun-LIsx1Cjy",
      "links": [
        [
          "technique",
          "technique"
        ],
        [
          "protester",
          "protester"
        ],
        [
          "remove",
          "remove"
        ],
        [
          "human chain",
          "human chain"
        ],
        [
          "hardware",
          "hardware"
        ]
      ]
    }
  ],
  "word": "lock-on"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "lock on"
      },
      "expansion": "Deverbal from lock on",
      "name": "deverbal"
    }
  ],
  "etymology_text": "Deverbal from lock on",
  "forms": [
    {
      "form": "lock-ons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lock-on (plural lock-ons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English deverbals",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A technique used by protesters to make it difficult to remove them from their place of protest, involving a human chain with linked arms, or sometimes the use of special hardware."
      ],
      "links": [
        [
          "technique",
          "technique"
        ],
        [
          "protester",
          "protester"
        ],
        [
          "remove",
          "remove"
        ],
        [
          "human chain",
          "human chain"
        ],
        [
          "hardware",
          "hardware"
        ]
      ]
    }
  ],
  "word": "lock-on"
}