"heliochrome" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "helio",
        "3": "chrome"
      },
      "expansion": "helio- + -chrome",
      "name": "confix"
    }
  ],
  "etymology_text": "helio- + -chrome",
  "forms": [
    {
      "form": "heliochromes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "heliochrome (plural heliochromes)",
      "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 helio-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -chrome",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A photograph representing an object in its natural colours."
      ],
      "id": "en-heliochrome-en-noun-NJVI2lPy",
      "links": [
        [
          "photograph",
          "photograph"
        ],
        [
          "representing",
          "representing"
        ],
        [
          "object",
          "object"
        ],
        [
          "natural",
          "natural"
        ],
        [
          "colour",
          "colour"
        ]
      ],
      "raw_glosses": [
        "(obsolete) A photograph representing an object in its natural colours."
      ],
      "tags": [
        "obsolete"
      ]
    }
  ],
  "word": "heliochrome"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "helio",
        "3": "chrome"
      },
      "expansion": "helio- + -chrome",
      "name": "confix"
    }
  ],
  "etymology_text": "helio- + -chrome",
  "forms": [
    {
      "form": "heliochromes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "heliochrome (plural heliochromes)",
      "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 helio-",
        "English terms suffixed with -chrome",
        "English terms with obsolete senses"
      ],
      "glosses": [
        "A photograph representing an object in its natural colours."
      ],
      "links": [
        [
          "photograph",
          "photograph"
        ],
        [
          "representing",
          "representing"
        ],
        [
          "object",
          "object"
        ],
        [
          "natural",
          "natural"
        ],
        [
          "colour",
          "colour"
        ]
      ],
      "raw_glosses": [
        "(obsolete) A photograph representing an object in its natural colours."
      ],
      "tags": [
        "obsolete"
      ]
    }
  ],
  "word": "heliochrome"
}