"trichromacy" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "χρῶμα",
        "4": "",
        "5": "color"
      },
      "expansion": "Ancient Greek χρῶμα (khrôma, “color”)",
      "name": "uder"
    }
  ],
  "etymology_text": "tri- + Ancient Greek χρῶμα (khrôma, “color”).",
  "forms": [
    {
      "form": "trichromacies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "trichromacy (countable and uncountable, plural trichromacies)",
      "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 undefined derivations",
          "parents": [
            "Undefined derivations",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The quality of having three independent channels for conveying color information in the eye."
      ],
      "id": "en-trichromacy-en-noun-erGIG3Y3",
      "links": [
        [
          "convey",
          "convey"
        ],
        [
          "color",
          "color"
        ],
        [
          "eye",
          "eye"
        ]
      ],
      "related": [
        {
          "word": "trichromat"
        },
        {
          "word": "trichromatic"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "wikipedia": [
        "trichromacy"
      ]
    }
  ],
  "word": "trichromacy"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "χρῶμα",
        "4": "",
        "5": "color"
      },
      "expansion": "Ancient Greek χρῶμα (khrôma, “color”)",
      "name": "uder"
    }
  ],
  "etymology_text": "tri- + Ancient Greek χρῶμα (khrôma, “color”).",
  "forms": [
    {
      "form": "trichromacies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "trichromacy (countable and uncountable, plural trichromacies)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "trichromat"
    },
    {
      "word": "trichromatic"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms derived from Ancient Greek",
        "English uncountable nouns",
        "English undefined derivations"
      ],
      "glosses": [
        "The quality of having three independent channels for conveying color information in the eye."
      ],
      "links": [
        [
          "convey",
          "convey"
        ],
        [
          "color",
          "color"
        ],
        [
          "eye",
          "eye"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "wikipedia": [
        "trichromacy"
      ]
    }
  ],
  "word": "trichromacy"
}