"underbarrier" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "under",
        "3": "barrier"
      },
      "expansion": "under- + barrier",
      "name": "prefix"
    }
  ],
  "etymology_text": "under- + barrier",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "underbarrier (not comparable)",
      "name": "en-adj"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "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 terms prefixed with under-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2015, A.O. Barvinsky, A.Yu. Kamenshchik, “New type of hill-top inflation: CFT driven cosmology”, in arXiv",
          "text": "Initial conditions for inflation are set up by cosmological instantons describing underbarrier oscillations in the vicinity of the inflaton potential maximum.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Beneath a barrier."
      ],
      "id": "en-underbarrier-en-adj-IVuGU3Cj",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "barrier",
          "barrier"
        ]
      ],
      "raw_glosses": [
        "(physics) Beneath a barrier."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "underbarrier"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "under",
        "3": "barrier"
      },
      "expansion": "under- + barrier",
      "name": "prefix"
    }
  ],
  "etymology_text": "under- + barrier",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "underbarrier (not comparable)",
      "name": "en-adj"
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
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        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms prefixed with under-",
        "English terms with quotations",
        "English uncomparable adjectives",
        "en:Physics"
      ],
      "examples": [
        {
          "ref": "2015, A.O. Barvinsky, A.Yu. Kamenshchik, “New type of hill-top inflation: CFT driven cosmology”, in arXiv",
          "text": "Initial conditions for inflation are set up by cosmological instantons describing underbarrier oscillations in the vicinity of the inflaton potential maximum.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Beneath a barrier."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "barrier",
          "barrier"
        ]
      ],
      "raw_glosses": [
        "(physics) Beneath a barrier."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "underbarrier"
}