"spurious diphthong" meaning in All languages combined

{
  "forms": [
    {
      "form": "spurious diphthongs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "spurious diphthong (plural spurious diphthongs)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Either of the digraphs ει and ου in Ancient Greek, when they represent a long vowel arising from compensatory lengthening or contraction rather than an actual diphthong"
      ],
      "id": "en-spurious_diphthong-en-noun-K3OJ2zrz",
      "links": [
        [
          "digraph",
          "digraph"
        ],
        [
          "Ancient Greek",
          "Ancient Greek"
        ],
        [
          "compensatory lengthening",
          "compensatory lengthening"
        ],
        [
          "contraction",
          "contraction"
        ]
      ],
      "wikipedia": [
        "spurious diphthong"
      ]
    }
  ],
  "word": "spurious diphthong"
}

{
  "forms": [
    {
      "form": "spurious diphthongs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "spurious diphthong (plural spurious diphthongs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Either of the digraphs ει and ου in Ancient Greek, when they represent a long vowel arising from compensatory lengthening or contraction rather than an actual diphthong"
      ],
      "links": [
        [
          "digraph",
          "digraph"
        ],
        [
          "Ancient Greek",
          "Ancient Greek"
        ],
        [
          "compensatory lengthening",
          "compensatory lengthening"
        ],
        [
          "contraction",
          "contraction"
        ]
      ],
      "wikipedia": [
        "spurious diphthong"
      ]
    }
  ],
  "word": "spurious diphthong"
}