"psc" meaning in English

{
  "derived": [
    {
      "_dis1": "0 0",
      "alt": "kiloparsec",
      "word": "kpsc"
    },
    {
      "_dis1": "0 0",
      "alt": "megaparsec",
      "word": "Mpsc"
    },
    {
      "_dis1": "0 0",
      "alt": "gigaparsec",
      "word": "Gpsc"
    }
  ],
  "forms": [
    {
      "form": "psc",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "psc"
      },
      "expansion": "psc (plural psc)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "parsec"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Astronomy",
          "orig": "en:Astronomy",
          "parents": [
            "Sciences",
            "Space",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Abbreviation of parsec."
      ],
      "id": "en-psc-en-noun-MlO1nkVZ",
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "parsec",
          "parsec#English"
        ]
      ],
      "raw_glosses": [
        "(astronomy, obsolete) Abbreviation of parsec."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "obsolete"
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ]
    },
    {
      "alt_of": [
        {
          "word": "parallax second"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Geometry",
          "orig": "en:Geometry",
          "parents": [
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "20 80",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "16 84",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "13 87",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Abbreviation of parallax second."
      ],
      "id": "en-psc-en-noun-prtoAB6y",
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "parallax second",
          "parallax second#English"
        ]
      ],
      "raw_glosses": [
        "(geometry) Abbreviation of parallax second."
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "english": "the symbol for parsec",
      "word": "pc"
    }
  ],
  "word": "psc"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English indeclinable nouns",
    "English lemmas",
    "English nouns",
    "English nouns with irregular plurals",
    "English words without vowels",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "derived": [
    {
      "alt": "kiloparsec",
      "word": "kpsc"
    },
    {
      "alt": "megaparsec",
      "word": "Mpsc"
    },
    {
      "alt": "gigaparsec",
      "word": "Gpsc"
    }
  ],
  "forms": [
    {
      "form": "psc",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "psc"
      },
      "expansion": "psc (plural psc)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "parsec"
        }
      ],
      "categories": [
        "English abbreviations",
        "English links with redundant wikilinks",
        "English terms with obsolete senses",
        "en:Astronomy"
      ],
      "glosses": [
        "Abbreviation of parsec."
      ],
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "parsec",
          "parsec#English"
        ]
      ],
      "raw_glosses": [
        "(astronomy, obsolete) Abbreviation of parsec."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "obsolete"
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ]
    },
    {
      "alt_of": [
        {
          "word": "parallax second"
        }
      ],
      "categories": [
        "English abbreviations",
        "English links with redundant wikilinks",
        "en:Geometry"
      ],
      "glosses": [
        "Abbreviation of parallax second."
      ],
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "parallax second",
          "parallax second#English"
        ]
      ],
      "raw_glosses": [
        "(geometry) Abbreviation of parallax second."
      ],
      "tags": [
        "abbreviation",
        "alt-of"
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "synonyms": [
    {
      "english": "the symbol for parsec",
      "word": "pc"
    }
  ],
  "word": "psc"
}