"isspesad" meaning in Breton

{
  "categories": [
    {
      "kind": "other",
      "name": "Dérivations en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en breton préfixés avec is-",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en breton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Breton",
      "orig": "breton",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Dérivé de spesad, avec le préfixe is-."
  ],
  "forms": [
    {
      "form": "isspesadoù",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en breton de la biologie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Sous-espèce."
      ],
      "id": "fr-isspesad-br-noun-2PaGU~Un",
      "topics": [
        "biology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\isˈpesːat\\"
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "isspesad"
}

{
  "categories": [
    "Dérivations en breton",
    "Mots en breton préfixés avec is-",
    "Noms communs en breton",
    "breton"
  ],
  "etymology_texts": [
    "Dérivé de spesad, avec le préfixe is-."
  ],
  "forms": [
    {
      "form": "isspesadoù",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Breton",
  "lang_code": "br",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Lexique en breton de la biologie"
      ],
      "glosses": [
        "Sous-espèce."
      ],
      "topics": [
        "biology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\isˈpesːat\\"
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "isspesad"
}