"ringhead" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ring",
        "3": "head"
      },
      "expansion": "ring + head",
      "name": "compound"
    }
  ],
  "etymology_text": "From ring + head.",
  "forms": [
    {
      "form": "ringheads",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ringhead (plural ringheads)",
      "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": "other",
          "name": "English terms with consonant pseudo-digraphs",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Tools",
          "orig": "en:Tools",
          "parents": [
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An instrument used for stretching woollen cloth."
      ],
      "id": "en-ringhead-en-noun-bSBy1AWY",
      "links": [
        [
          "instrument",
          "instrument"
        ],
        [
          "stretch",
          "stretch"
        ],
        [
          "woollen",
          "woollen"
        ],
        [
          "cloth",
          "cloth"
        ]
      ]
    }
  ],
  "word": "ringhead"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ring",
        "3": "head"
      },
      "expansion": "ring + head",
      "name": "compound"
    }
  ],
  "etymology_text": "From ring + head.",
  "forms": [
    {
      "form": "ringheads",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ringhead (plural ringheads)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with consonant pseudo-digraphs",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Tools"
      ],
      "glosses": [
        "An instrument used for stretching woollen cloth."
      ],
      "links": [
        [
          "instrument",
          "instrument"
        ],
        [
          "stretch",
          "stretch"
        ],
        [
          "woollen",
          "woollen"
        ],
        [
          "cloth",
          "cloth"
        ]
      ]
    }
  ],
  "word": "ringhead"
}