"л. с." meaning in Russian

{
  "forms": [
    {
      "form": "l. s.",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "f-in",
        "3": "-"
      },
      "expansion": "л. с. • (l. s.) f inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "(lošadínaja síla): HP, horsepower",
          "word": "лошади́ная си́ла"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ru",
          "name": "Units of measure",
          "orig": "ru:Units of measure",
          "parents": [
            "Metrology",
            "Quantity",
            "Applied sciences",
            "Mathematics",
            "Sciences",
            "Formal sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "abbreviation of лошади́ная си́ла (lošadínaja síla): HP, horsepower"
      ],
      "id": "en-л._с.-ru-noun-mvAyFCXh",
      "links": [
        [
          "лошади́ная си́ла",
          "лошадиная сила#Russian"
        ],
        [
          "HP",
          "HP"
        ],
        [
          "horsepower",
          "horsepower"
        ]
      ],
      "synonyms": [
        {
          "roman": "l.s.",
          "word": "л.с."
        }
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable"
      ]
    }
  ],
  "word": "л. с."
}

{
  "forms": [
    {
      "form": "l. s.",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "",
        "2": "f-in",
        "3": "-"
      },
      "expansion": "л. с. • (l. s.) f inan (indeclinable)",
      "name": "ru-noun"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "(lošadínaja síla): HP, horsepower",
          "word": "лошади́ная си́ла"
        }
      ],
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Russian abbreviations",
        "Russian entries with incorrect language header",
        "Russian feminine nouns",
        "Russian inanimate nouns",
        "Russian indeclinable nouns",
        "Russian lemmas",
        "Russian multiword terms",
        "Russian nouns",
        "Russian terms spelled with .",
        "ru:Units of measure"
      ],
      "glosses": [
        "abbreviation of лошади́ная си́ла (lošadínaja síla): HP, horsepower"
      ],
      "links": [
        [
          "лошади́ная си́ла",
          "лошадиная сила#Russian"
        ],
        [
          "HP",
          "HP"
        ],
        [
          "horsepower",
          "horsepower"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable"
      ]
    }
  ],
  "synonyms": [
    {
      "roman": "l.s.",
      "word": "л.с."
    }
  ],
  "word": "л. с."
}