"photopeak" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "photo",
        "3": "peak"
      },
      "expansion": "photo- + peak",
      "name": "prefix"
    }
  ],
  "etymology_text": "photo- + peak",
  "forms": [
    {
      "form": "photopeaks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "photopeak (plural photopeaks)",
      "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 prefixed with photo-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "That part of the gamma ray spectrum of a material caused by the photoelectric effect"
      ],
      "id": "en-photopeak-en-noun-ge6sA1-O",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "gamma ray",
          "gamma ray"
        ],
        [
          "spectrum",
          "spectrum"
        ],
        [
          "photoelectric",
          "photoelectric"
        ]
      ],
      "raw_glosses": [
        "(physics) That part of the gamma ray spectrum of a material caused by the photoelectric effect"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "guāngfēng",
          "sense": "part of the gamma ray spectrum",
          "word": "光峰"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "part of the gamma ray spectrum",
          "tags": [
            "masculine"
          ],
          "word": "Photopeak"
        },
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "part of the gamma ray spectrum",
          "word": "fotocsúcs"
        },
        {
          "code": "ko",
          "lang": "Korean",
          "roman": "gwangjeoljeong",
          "sense": "part of the gamma ray spectrum",
          "word": "광절정"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "fotopik",
          "sense": "part of the gamma ray spectrum",
          "tags": [
            "masculine"
          ],
          "word": "фотопик"
        }
      ]
    }
  ],
  "word": "photopeak"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "photo",
        "3": "peak"
      },
      "expansion": "photo- + peak",
      "name": "prefix"
    }
  ],
  "etymology_text": "photo- + peak",
  "forms": [
    {
      "form": "photopeaks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "photopeak (plural photopeaks)",
      "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 prefixed with photo-",
        "en:Physics"
      ],
      "glosses": [
        "That part of the gamma ray spectrum of a material caused by the photoelectric effect"
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "gamma ray",
          "gamma ray"
        ],
        [
          "spectrum",
          "spectrum"
        ],
        [
          "photoelectric",
          "photoelectric"
        ]
      ],
      "raw_glosses": [
        "(physics) That part of the gamma ray spectrum of a material caused by the photoelectric effect"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "guāngfēng",
      "sense": "part of the gamma ray spectrum",
      "word": "光峰"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "part of the gamma ray spectrum",
      "tags": [
        "masculine"
      ],
      "word": "Photopeak"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "part of the gamma ray spectrum",
      "word": "fotocsúcs"
    },
    {
      "code": "ko",
      "lang": "Korean",
      "roman": "gwangjeoljeong",
      "sense": "part of the gamma ray spectrum",
      "word": "광절정"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "fotopik",
      "sense": "part of the gamma ray spectrum",
      "tags": [
        "masculine"
      ],
      "word": "фотопик"
    }
  ],
  "word": "photopeak"
}