"red alga" meaning in English

{
  "forms": [
    {
      "form": "red algae",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "red algae"
      },
      "expansion": "red alga (plural red algae)",
      "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"
        },
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          "kind": "other",
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        },
        {
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          "kind": "other",
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        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
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        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Maori translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Portuguese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Spanish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Biology",
          "orig": "en:Biology",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Red algae",
          "orig": "en:Red algae",
          "parents": [
            "Algae",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Any algae of the phyla Rhodophyta, principally, and Glaucophyta, mostly reddish in colour."
      ],
      "id": "en-red_alga-en-noun-EwnXNsoS",
      "links": [
        [
          "alga",
          "alga"
        ],
        [
          "Rhodophyta",
          "Rhodophyta"
        ],
        [
          "Glaucophyta",
          "Glaucophyta#Translingual"
        ],
        [
          "reddish",
          "reddish"
        ]
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Member of the phylum Rhodophyta",
          "word": "punalevä"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Member of the phylum Rhodophyta",
          "tags": [
            "feminine"
          ],
          "word": "Rotalge"
        },
        {
          "code": "mi",
          "lang": "Maori",
          "sense": "Member of the phylum Rhodophyta",
          "word": "pāpataura"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "Member of the phylum Rhodophyta",
          "tags": [
            "feminine"
          ],
          "word": "alga vermelha"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Member of the phylum Rhodophyta",
          "tags": [
            "feminine"
          ],
          "word": "alga roja"
        }
      ]
    }
  ],
  "word": "red alga"
}

{
  "forms": [
    {
      "form": "red algae",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "red algae"
      },
      "expansion": "red alga (plural red algae)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
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        "Terms with German translations",
        "Terms with Maori translations",
        "Terms with Portuguese translations",
        "Terms with Spanish translations",
        "en:Biology",
        "en:Red algae"
      ],
      "glosses": [
        "Any algae of the phyla Rhodophyta, principally, and Glaucophyta, mostly reddish in colour."
      ],
      "links": [
        [
          "alga",
          "alga"
        ],
        [
          "Rhodophyta",
          "Rhodophyta"
        ],
        [
          "Glaucophyta",
          "Glaucophyta#Translingual"
        ],
        [
          "reddish",
          "reddish"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Member of the phylum Rhodophyta",
      "word": "punalevä"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Member of the phylum Rhodophyta",
      "tags": [
        "feminine"
      ],
      "word": "Rotalge"
    },
    {
      "code": "mi",
      "lang": "Maori",
      "sense": "Member of the phylum Rhodophyta",
      "word": "pāpataura"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "Member of the phylum Rhodophyta",
      "tags": [
        "feminine"
      ],
      "word": "alga vermelha"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Member of the phylum Rhodophyta",
      "tags": [
        "feminine"
      ],
      "word": "alga roja"
    }
  ],
  "word": "red alga"
}