"light pen" meaning in English

{
  "forms": [
    {
      "form": "light pens",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "light pen (plural light pens)",
      "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": "Japanese terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Mandarin terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Computer hardware",
          "orig": "en:Computer hardware",
          "parents": [
            "Computing",
            "Electronics",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A pen-like device allowing a computer user to interact with the screen display."
      ],
      "id": "en-light_pen-en-noun-yYom5pol",
      "links": [
        [
          "computer",
          "computer"
        ],
        [
          "hardware",
          "hardware"
        ],
        [
          "pen",
          "pen"
        ]
      ],
      "raw_glosses": [
        "(computer hardware) A pen-like device allowing a computer user to interact with the screen display."
      ],
      "related": [
        {
          "word": "stylus"
        }
      ],
      "topics": [
        "computer-hardware",
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "a computer input device",
          "word": "光筆"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "guāngbǐ",
          "sense": "a computer input device",
          "word": "光笔"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "a computer input device",
          "word": "valokynä"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "a computer input device",
          "tags": [
            "masculine"
          ],
          "word": "crayon optique"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "a computer input device",
          "tags": [
            "masculine"
          ],
          "word": "Lichtgriffel"
        },
        {
          "code": "el",
          "lang": "Greek",
          "roman": "fotografída",
          "sense": "a computer input device",
          "tags": [
            "feminine"
          ],
          "word": "φωτογραφίδα"
        },
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "a computer input device",
          "word": "fényceruza"
        },
        {
          "code": "ja",
          "lang": "Japanese",
          "roman": "raito pen",
          "sense": "a computer input device",
          "word": "ライトペン"
        },
        {
          "code": "ko",
          "lang": "Korean",
          "roman": "raiteu pen",
          "sense": "a computer input device",
          "word": "라이트 펜"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "svetovóje peró",
          "sense": "a computer input device",
          "tags": [
            "neuter"
          ],
          "word": "светово́е перо́"
        }
      ],
      "wikipedia": [
        "light pen"
      ]
    }
  ],
  "word": "light pen"
}

{
  "forms": [
    {
      "form": "light pens",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "light pen (plural light pens)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "stylus"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Japanese terms with redundant script codes",
        "Korean terms with redundant script codes",
        "Mandarin terms with redundant transliterations",
        "Russian terms with redundant script codes",
        "en:Computer hardware"
      ],
      "glosses": [
        "A pen-like device allowing a computer user to interact with the screen display."
      ],
      "links": [
        [
          "computer",
          "computer"
        ],
        [
          "hardware",
          "hardware"
        ],
        [
          "pen",
          "pen"
        ]
      ],
      "raw_glosses": [
        "(computer hardware) A pen-like device allowing a computer user to interact with the screen display."
      ],
      "topics": [
        "computer-hardware",
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ],
      "wikipedia": [
        "light pen"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "a computer input device",
      "word": "光筆"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "guāngbǐ",
      "sense": "a computer input device",
      "word": "光笔"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "a computer input device",
      "word": "valokynä"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "a computer input device",
      "tags": [
        "masculine"
      ],
      "word": "crayon optique"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "a computer input device",
      "tags": [
        "masculine"
      ],
      "word": "Lichtgriffel"
    },
    {
      "code": "el",
      "lang": "Greek",
      "roman": "fotografída",
      "sense": "a computer input device",
      "tags": [
        "feminine"
      ],
      "word": "φωτογραφίδα"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "a computer input device",
      "word": "fényceruza"
    },
    {
      "code": "ja",
      "lang": "Japanese",
      "roman": "raito pen",
      "sense": "a computer input device",
      "word": "ライトペン"
    },
    {
      "code": "ko",
      "lang": "Korean",
      "roman": "raiteu pen",
      "sense": "a computer input device",
      "word": "라이트 펜"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "svetovóje peró",
      "sense": "a computer input device",
      "tags": [
        "neuter"
      ],
      "word": "светово́е перо́"
    }
  ],
  "word": "light pen"
}