"protobranch" meaning in English

{
  "forms": [
    {
      "form": "protobranchs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "protobranchs"
      },
      "expansion": "protobranch (plural protobranchs)",
      "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"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              4,
              15
            ]
          ],
          "ref": "2015 November 12, “Benthic Trophic Interactions in an Antarctic Shallow Water Ecosystem Affected by Recent Glacier Retreat”, in PLOS ONE, →DOI:",
          "text": "The protobranch bivalve mollusc Y.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Any bivalve mollusc of the subclass Protobranchia"
      ],
      "id": "en-protobranch-en-noun-zD1uOGOV",
      "links": [
        [
          "bivalve",
          "bivalve"
        ],
        [
          "mollusc",
          "mollusc"
        ]
      ]
    }
  ],
  "word": "protobranch"
}

{
  "forms": [
    {
      "form": "protobranchs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "protobranchs"
      },
      "expansion": "protobranch (plural protobranchs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English nouns with irregular plurals",
        "English terms with quotations",
        "Entries using missing taxonomic name (subclass)",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              4,
              15
            ]
          ],
          "ref": "2015 November 12, “Benthic Trophic Interactions in an Antarctic Shallow Water Ecosystem Affected by Recent Glacier Retreat”, in PLOS ONE, →DOI:",
          "text": "The protobranch bivalve mollusc Y.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Any bivalve mollusc of the subclass Protobranchia"
      ],
      "links": [
        [
          "bivalve",
          "bivalve"
        ],
        [
          "mollusc",
          "mollusc"
        ]
      ]
    }
  ],
  "word": "protobranch"
}