"aleta" meaning in Catalan

{
  "categories": [
    {
      "kind": "other",
      "name": "Dérivations en catalan",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Mots en catalan suffixés avec -eta",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en catalan",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Catalan",
      "orig": "catalan",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Dérivé de ala, avec le suffixe -eta."
  ],
  "forms": [
    {
      "form": "aletes",
      "ipas": [
        "\\əˈɫɛ.təs\\"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Catalan",
  "lang_code": "ca",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en catalan de la zoologie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Nageoire d’un poisson."
      ],
      "id": "fr-aleta-ca-noun-cIiHRQ3l",
      "topics": [
        "zoology"
      ]
    },
    {
      "glosses": [
        "Signal de main fait par l'enxaneta au moment de compléter la construction d'un castell."
      ],
      "id": "fr-aleta-ca-noun-z5CPfvHG"
    }
  ],
  "sounds": [
    {
      "ipa": "\\əˈɫɛ.tə\\"
    },
    {
      "ipa": "\\aˈɫe.ta\\"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "aleta"
}

{
  "categories": [
    "Dérivations en catalan",
    "Mots en catalan suffixés avec -eta",
    "Noms communs en catalan",
    "catalan"
  ],
  "etymology_texts": [
    "Dérivé de ala, avec le suffixe -eta."
  ],
  "forms": [
    {
      "form": "aletes",
      "ipas": [
        "\\əˈɫɛ.təs\\"
      ],
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Catalan",
  "lang_code": "ca",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Lexique en catalan de la zoologie"
      ],
      "glosses": [
        "Nageoire d’un poisson."
      ],
      "topics": [
        "zoology"
      ]
    },
    {
      "glosses": [
        "Signal de main fait par l'enxaneta au moment de compléter la construction d'un castell."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\əˈɫɛ.tə\\"
    },
    {
      "ipa": "\\aˈɫe.ta\\"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "aleta"
}