"neuston" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "νευστός",
        "4": "",
        "5": "swimming"
      },
      "expansion": "Ancient Greek νευστός (neustós, “swimming”)",
      "name": "uder"
    }
  ],
  "etymology_text": "From Ancient Greek νευστός (neustós, “swimming”).",
  "forms": [
    {
      "form": "neustons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "neuston (countable and uncountable, plural neustons)",
      "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"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Biology",
          "orig": "en:Biology",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "plankton"
        }
      ],
      "derived": [
        {
          "word": "epineuston"
        },
        {
          "word": "hyponeuston"
        },
        {
          "word": "neustonic"
        }
      ],
      "glosses": [
        "All the organisms that live at the surface of water."
      ],
      "id": "en-neuston-en-noun-3Gje48EO",
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "organism",
          "organism"
        ],
        [
          "surface",
          "surface"
        ],
        [
          "water",
          "water"
        ]
      ],
      "raw_glosses": [
        "(biology) All the organisms that live at the surface of water."
      ],
      "related": [
        {
          "word": "pleuston"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "biology",
        "natural-sciences"
      ],
      "wikipedia": [
        "en:neuston"
      ]
    }
  ],
  "word": "neuston"
}

{
  "coordinate_terms": [
    {
      "word": "plankton"
    }
  ],
  "derived": [
    {
      "word": "epineuston"
    },
    {
      "word": "hyponeuston"
    },
    {
      "word": "neustonic"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "νευστός",
        "4": "",
        "5": "swimming"
      },
      "expansion": "Ancient Greek νευστός (neustós, “swimming”)",
      "name": "uder"
    }
  ],
  "etymology_text": "From Ancient Greek νευστός (neustós, “swimming”).",
  "forms": [
    {
      "form": "neustons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "neuston (countable and uncountable, plural neustons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "pleuston"
    }
  ],
  "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",
        "Pages with 2 entries",
        "en:Biology"
      ],
      "glosses": [
        "All the organisms that live at the surface of water."
      ],
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "organism",
          "organism"
        ],
        [
          "surface",
          "surface"
        ],
        [
          "water",
          "water"
        ]
      ],
      "raw_glosses": [
        "(biology) All the organisms that live at the surface of water."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "biology",
        "natural-sciences"
      ],
      "wikipedia": [
        "en:neuston"
      ]
    }
  ],
  "word": "neuston"
}