"pica stick" meaning in English

{
  "forms": [
    {
      "form": "pica sticks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pica stick (plural pica sticks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Printing",
          "orig": "en:Printing",
          "parents": [
            "Industries",
            "Business",
            "Economics",
            "Society",
            "Social sciences",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A type of ruler used to measure by hand the spacing in prints, designs, mock-ups, and proofs."
      ],
      "id": "en-pica_stick-en-noun-D7LjxwHs",
      "links": [
        [
          "printing",
          "printing#Noun"
        ],
        [
          "ruler",
          "ruler"
        ],
        [
          "measure",
          "measure"
        ],
        [
          "hand",
          "hand"
        ],
        [
          "spacing",
          "spacing"
        ],
        [
          "print",
          "print"
        ],
        [
          "design",
          "design"
        ],
        [
          "mock-up",
          "mock-up"
        ],
        [
          "proof",
          "proof"
        ]
      ],
      "raw_glosses": [
        "(printing, drafting) A type of ruler used to measure by hand the spacing in prints, designs, mock-ups, and proofs."
      ],
      "synonyms": [
        {
          "word": "line gauge"
        },
        {
          "word": "agate ruler"
        }
      ],
      "topics": [
        "drafting",
        "engineering",
        "media",
        "natural-sciences",
        "physical-sciences",
        "printing",
        "publishing"
      ]
    }
  ],
  "word": "pica stick"
}

{
  "forms": [
    {
      "form": "pica sticks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pica stick (plural pica sticks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Printing"
      ],
      "glosses": [
        "A type of ruler used to measure by hand the spacing in prints, designs, mock-ups, and proofs."
      ],
      "links": [
        [
          "printing",
          "printing#Noun"
        ],
        [
          "ruler",
          "ruler"
        ],
        [
          "measure",
          "measure"
        ],
        [
          "hand",
          "hand"
        ],
        [
          "spacing",
          "spacing"
        ],
        [
          "print",
          "print"
        ],
        [
          "design",
          "design"
        ],
        [
          "mock-up",
          "mock-up"
        ],
        [
          "proof",
          "proof"
        ]
      ],
      "raw_glosses": [
        "(printing, drafting) A type of ruler used to measure by hand the spacing in prints, designs, mock-ups, and proofs."
      ],
      "synonyms": [
        {
          "word": "line gauge"
        },
        {
          "word": "agate ruler"
        }
      ],
      "topics": [
        "drafting",
        "engineering",
        "media",
        "natural-sciences",
        "physical-sciences",
        "printing",
        "publishing"
      ]
    }
  ],
  "word": "pica stick"
}