"seleniwm" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "en",
        "3": "selenium"
      },
      "expansion": "English selenium",
      "name": "bor"
    },
    {
      "args": {
        "1": "cy",
        "2": "fr",
        "3": "sélénium"
      },
      "expansion": "French sélénium",
      "name": "bor"
    },
    {
      "args": {
        "1": "cy",
        "2": "grc",
        "3": "σελήνη",
        "t": "moon"
      },
      "expansion": "Ancient Greek σελήνη (selḗnē, “moon”)",
      "name": "der"
    }
  ],
  "etymology_text": "Borrowed from English selenium, French sélénium, from Ancient Greek σελήνη (selḗnē, “moon”).",
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "-"
      },
      "expansion": "seleniwm m (uncountable, not mutable)",
      "name": "cy-noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Welsh entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "cy",
          "name": "Chemical elements",
          "orig": "cy:Chemical elements",
          "parents": [
            "Matter",
            "Chemistry",
            "Nature",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "selenium"
      ],
      "id": "en-seleniwm-cy-noun-5oSj6U79",
      "links": [
        [
          "selenium",
          "selenium"
        ]
      ],
      "tags": [
        "masculine",
        "not-mutable",
        "uncountable"
      ],
      "wikipedia": [
        "cy:seleniwm"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sɛˈlɛnjʊm/"
    },
    {
      "rhymes": "-ɛnjʊm"
    }
  ],
  "word": "seleniwm"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "en",
        "3": "selenium"
      },
      "expansion": "English selenium",
      "name": "bor"
    },
    {
      "args": {
        "1": "cy",
        "2": "fr",
        "3": "sélénium"
      },
      "expansion": "French sélénium",
      "name": "bor"
    },
    {
      "args": {
        "1": "cy",
        "2": "grc",
        "3": "σελήνη",
        "t": "moon"
      },
      "expansion": "Ancient Greek σελήνη (selḗnē, “moon”)",
      "name": "der"
    }
  ],
  "etymology_text": "Borrowed from English selenium, French sélénium, from Ancient Greek σελήνη (selḗnē, “moon”).",
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "-"
      },
      "expansion": "seleniwm m (uncountable, not mutable)",
      "name": "cy-noun"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Rhymes:Welsh/ɛnjʊm",
        "Rhymes:Welsh/ɛnjʊm/3 syllables",
        "Welsh entries with incorrect language header",
        "Welsh entries with topic categories using raw markup",
        "Welsh lemmas",
        "Welsh masculine nouns",
        "Welsh non-mutable terms",
        "Welsh nouns",
        "Welsh terms borrowed from English",
        "Welsh terms borrowed from French",
        "Welsh terms derived from Ancient Greek",
        "Welsh terms derived from English",
        "Welsh terms derived from French",
        "Welsh terms with IPA pronunciation",
        "Welsh uncountable nouns",
        "cy:Chemical elements"
      ],
      "glosses": [
        "selenium"
      ],
      "links": [
        [
          "selenium",
          "selenium"
        ]
      ],
      "tags": [
        "masculine",
        "not-mutable",
        "uncountable"
      ],
      "wikipedia": [
        "cy:seleniwm"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sɛˈlɛnjʊm/"
    },
    {
      "rhymes": "-ɛnjʊm"
    }
  ],
  "word": "seleniwm"
}