"συστολή" meaning in Grec ancien

{
  "categories": [
    {
      "kind": "other",
      "name": "Déverbaux en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Grec ancien",
      "orig": "grec ancien",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "lang": "Français",
      "lang_code": "fr",
      "word": "systole"
    }
  ],
  "etymology_texts": [
    "Déverbal de συστέλλω, voir στέλλω."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "συστολή, sustolê"
  ],
  "senses": [
    {
      "glosses": [
        "Resserrement, contraction."
      ],
      "id": "fr-συστολή-grc-noun-gcbvFiIs"
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en grec ancien de la médecine",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Contraction du cœur."
      ],
      "id": "fr-συστολή-grc-noun-FlCoOdRV",
      "topics": [
        "medicine"
      ]
    },
    {
      "glosses": [
        "Répression."
      ],
      "id": "fr-συστολή-grc-noun-aqWtZxca"
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "συστολή"
}

{
  "categories": [
    "Déverbaux en grec ancien",
    "Noms communs en grec ancien",
    "grec ancien"
  ],
  "derived": [
    {
      "lang": "Français",
      "lang_code": "fr",
      "word": "systole"
    }
  ],
  "etymology_texts": [
    "Déverbal de συστέλλω, voir στέλλω."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "συστολή, sustolê"
  ],
  "senses": [
    {
      "glosses": [
        "Resserrement, contraction."
      ]
    },
    {
      "categories": [
        "Lexique en grec ancien de la médecine"
      ],
      "glosses": [
        "Contraction du cœur."
      ],
      "topics": [
        "medicine"
      ]
    },
    {
      "glosses": [
        "Répression."
      ]
    }
  ],
  "tags": [
    "feminine"
  ],
  "word": "συστολή"
}