"letheon" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "NL.",
        "3": "lēthēon"
      },
      "expansion": "New Latin lēthēon",
      "name": "bor"
    },
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "λήθη",
        "t": "forgetting, forgetfulness"
      },
      "expansion": "Ancient Greek λήθη (lḗthē, “forgetting, forgetfulness”)",
      "name": "der"
    }
  ],
  "etymology_text": "From New Latin lēthēon, from Ancient Greek λήθη (lḗthē, “forgetting, forgetfulness”).",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "letheon (uncountable)",
      "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": "topical",
          "langcode": "en",
          "name": "Medicine",
          "orig": "en:Medicine",
          "parents": [
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "letheonize"
        }
      ],
      "glosses": [
        "sulphuric ether used as an anaesthetic agent."
      ],
      "id": "en-letheon-en-noun-vEbZVOSN",
      "links": [
        [
          "medicine",
          "medicine"
        ],
        [
          "sulphuric",
          "sulphuric"
        ],
        [
          "ether",
          "ether"
        ],
        [
          "anaesthetic",
          "anaesthetic"
        ]
      ],
      "raw_glosses": [
        "(medicine, archaic) sulphuric ether used as an anaesthetic agent."
      ],
      "tags": [
        "archaic",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈliːθiːən/"
    }
  ],
  "word": "letheon"
}

{
  "derived": [
    {
      "word": "letheonize"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "NL.",
        "3": "lēthēon"
      },
      "expansion": "New Latin lēthēon",
      "name": "bor"
    },
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "λήθη",
        "t": "forgetting, forgetfulness"
      },
      "expansion": "Ancient Greek λήθη (lḗthē, “forgetting, forgetfulness”)",
      "name": "der"
    }
  ],
  "etymology_text": "From New Latin lēthēon, from Ancient Greek λήθη (lḗthē, “forgetting, forgetfulness”).",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "letheon (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English 3-syllable words",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms borrowed from New Latin",
        "English terms derived from Ancient Greek",
        "English terms derived from New Latin",
        "English terms with IPA pronunciation",
        "English terms with archaic senses",
        "English uncountable nouns",
        "en:Medicine"
      ],
      "glosses": [
        "sulphuric ether used as an anaesthetic agent."
      ],
      "links": [
        [
          "medicine",
          "medicine"
        ],
        [
          "sulphuric",
          "sulphuric"
        ],
        [
          "ether",
          "ether"
        ],
        [
          "anaesthetic",
          "anaesthetic"
        ]
      ],
      "raw_glosses": [
        "(medicine, archaic) sulphuric ether used as an anaesthetic agent."
      ],
      "tags": [
        "archaic",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈliːθiːən/"
    }
  ],
  "word": "letheon"
}