"focuser" meaning in All languages combined

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "focus",
        "3": "-er",
        "id2": "agent noun"
      },
      "expansion": "focus + -er",
      "name": "affix"
    }
  ],
  "etymology_text": "From focus + -er.",
  "forms": [
    {
      "form": "focusers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "focuser (plural focusers)",
      "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 suffixed with -er (agent noun)",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "Crayford focuser"
        }
      ],
      "examples": [
        {
          "text": "I decided to upgrade my telescope with a feather-touch focuser.",
          "type": "example"
        }
      ],
      "glosses": [
        "A device which allows one to adjust the focus of an instrument such as a telescope."
      ],
      "id": "en-focuser-en-noun-ERHwZMcZ"
    }
  ],
  "word": "focuser"
}

{
  "derived": [
    {
      "word": "Crayford focuser"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "focus",
        "3": "-er",
        "id2": "agent noun"
      },
      "expansion": "focus + -er",
      "name": "affix"
    }
  ],
  "etymology_text": "From focus + -er.",
  "forms": [
    {
      "form": "focusers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "focuser (plural focusers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms suffixed with -er (agent noun)",
        "English terms with usage examples",
        "Pages with 1 entry"
      ],
      "examples": [
        {
          "text": "I decided to upgrade my telescope with a feather-touch focuser.",
          "type": "example"
        }
      ],
      "glosses": [
        "A device which allows one to adjust the focus of an instrument such as a telescope."
      ]
    }
  ],
  "word": "focuser"
}