"pliotron" meaning in English

{
  "etymology_text": "Originally a trademark of General Electric, who began producing them in 1915.",
  "forms": [
    {
      "form": "pliotrons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pliotron (plural pliotrons)",
      "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 entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English genericized trademarks",
          "parents": [
            "Genericized trademarks",
            "Terms by etymology",
            "Trademarks",
            "Terms by usage"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -tron",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A hard vacuum triode."
      ],
      "id": "en-pliotron-en-noun-ZFYmroft",
      "links": [
        [
          "hard",
          "hard"
        ],
        [
          "vacuum",
          "vacuum"
        ],
        [
          "triode",
          "triode"
        ]
      ]
    }
  ],
  "word": "pliotron"
}

{
  "etymology_text": "Originally a trademark of General Electric, who began producing them in 1915.",
  "forms": [
    {
      "form": "pliotrons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pliotron (plural pliotrons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English genericized trademarks",
        "English lemmas",
        "English nouns",
        "English terms suffixed with -tron"
      ],
      "glosses": [
        "A hard vacuum triode."
      ],
      "links": [
        [
          "hard",
          "hard"
        ],
        [
          "vacuum",
          "vacuum"
        ],
        [
          "triode",
          "triode"
        ]
      ]
    }
  ],
  "word": "pliotron"
}