"photoactivation" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "photo",
        "3": "activation"
      },
      "expansion": "photo- + activation",
      "name": "prefix"
    }
  ],
  "etymology_text": "From photo- + activation.",
  "forms": [
    {
      "form": "photoactivations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "photoactivation (usually uncountable, plural photoactivations)",
      "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": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Chemistry",
          "orig": "en:Chemistry",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The absorption of energy from a photon in raising a molecule (or chromophore) from the ground state; especially the first stage of photosynthesis in which energy is absorbed by chlorophyll"
      ],
      "id": "en-photoactivation-en-noun-Kuss5IYu",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "chemistry",
          "chemistry"
        ],
        [
          "absorption",
          "absorption"
        ],
        [
          "energy",
          "energy"
        ],
        [
          "photon",
          "photon"
        ],
        [
          "molecule",
          "molecule"
        ],
        [
          "chromophore",
          "chromophore"
        ],
        [
          "ground state",
          "ground state"
        ],
        [
          "photosynthesis",
          "photosynthesis"
        ],
        [
          "chlorophyll",
          "chlorophyll"
        ]
      ],
      "raw_glosses": [
        "(physics, chemistry) The absorption of energy from a photon in raising a molecule (or chromophore) from the ground state; especially the first stage of photosynthesis in which energy is absorbed by chlorophyll"
      ],
      "related": [
        {
          "word": "photoinactivation"
        }
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "photoactivation"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "photo",
        "3": "activation"
      },
      "expansion": "photo- + activation",
      "name": "prefix"
    }
  ],
  "etymology_text": "From photo- + activation.",
  "forms": [
    {
      "form": "photoactivations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "photoactivation (usually uncountable, plural photoactivations)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "photoinactivation"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
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        "English nouns",
        "English terms prefixed with photo-",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Chemistry",
        "en:Physics"
      ],
      "glosses": [
        "The absorption of energy from a photon in raising a molecule (or chromophore) from the ground state; especially the first stage of photosynthesis in which energy is absorbed by chlorophyll"
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "chemistry",
          "chemistry"
        ],
        [
          "absorption",
          "absorption"
        ],
        [
          "energy",
          "energy"
        ],
        [
          "photon",
          "photon"
        ],
        [
          "molecule",
          "molecule"
        ],
        [
          "chromophore",
          "chromophore"
        ],
        [
          "ground state",
          "ground state"
        ],
        [
          "photosynthesis",
          "photosynthesis"
        ],
        [
          "chlorophyll",
          "chlorophyll"
        ]
      ],
      "raw_glosses": [
        "(physics, chemistry) The absorption of energy from a photon in raising a molecule (or chromophore) from the ground state; especially the first stage of photosynthesis in which energy is absorbed by chlorophyll"
      ],
      "tags": [
        "uncountable",
        "usually"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "photoactivation"
}