"磁力線" meaning in 日本語

{
  "categories": [
    {
      "kind": "other",
      "name": "日本語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日本語_名詞",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "じりょくせん"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "日本語 電磁気学",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "磁場中の各点での接線の方向が磁場の方向と一致するように描いた曲線。"
      ],
      "id": "ja-磁力線-ja-noun-bOJbA29x",
      "topics": [
        "electromagnetism"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "磁気力線"
    }
  ],
  "word": "磁力線"
}

{
  "categories": [
    "日本語",
    "日本語_名詞"
  ],
  "forms": [
    {
      "form": "じりょくせん"
    }
  ],
  "lang": "日本語",
  "lang_code": "ja",
  "pos": "noun",
  "pos_title": "名詞",
  "senses": [
    {
      "categories": [
        "日本語 電磁気学"
      ],
      "glosses": [
        "磁場中の各点での接線の方向が磁場の方向と一致するように描いた曲線。"
      ],
      "topics": [
        "electromagnetism"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "磁気力線"
    }
  ],
  "word": "磁力線"
}