"atom" meaning in Welsh

{
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "prepositional pronoun"
      },
      "expansion": "atom",
      "name": "head"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "pron",
  "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 prepositional pronouns",
          "parents": [
            "Prepositional pronouns",
            "Prepositions",
            "Pronoun forms",
            "Lemmas",
            "Non-lemma forms",
            "Pronouns"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "at"
        }
      ],
      "glosses": [
        "first-person plural of at"
      ],
      "id": "en-atom-cy-pron-Mso1b5UF",
      "links": [
        [
          "at",
          "at#Welsh"
        ]
      ],
      "raw_glosses": [
        "(literary) first-person plural of at"
      ],
      "synonyms": [
        {
          "word": "aton"
        }
      ],
      "tags": [
        "first-person",
        "form-of",
        "literary",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈatɔm/"
    }
  ],
  "word": "atom"
}

{
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "prepositional pronoun"
      },
      "expansion": "atom",
      "name": "head"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        "Welsh entries with incorrect language header",
        "Welsh literary terms",
        "Welsh non-lemma forms",
        "Welsh prepositional pronouns",
        "Welsh terms with IPA pronunciation"
      ],
      "form_of": [
        {
          "word": "at"
        }
      ],
      "glosses": [
        "first-person plural of at"
      ],
      "links": [
        [
          "at",
          "at#Welsh"
        ]
      ],
      "raw_glosses": [
        "(literary) first-person plural of at"
      ],
      "tags": [
        "first-person",
        "form-of",
        "literary",
        "plural"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈatɔm/"
    }
  ],
  "synonyms": [
    {
      "word": "aton"
    }
  ],
  "word": "atom"
}