"Z-pak" meaning in English

{
  "etymology_text": "Initial of Zithromax (“Pfizer's proprietary name for azithromycin”) and pack.",
  "forms": [
    {
      "form": "Z-paks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Z-pak (plural Z-paks)",
      "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": "other",
          "name": "English links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "The pills in a Z-pak are to be taken as follows: […]",
          "type": "example"
        }
      ],
      "glosses": [
        "A package of six pills, each one containing 250 mg of the antibacterial azithromycin."
      ],
      "id": "en-Z-pak-en-noun-k8d8~tHy",
      "links": [
        [
          "azithromycin",
          "azithromycin"
        ]
      ]
    }
  ],
  "word": "Z-pak"
}

{
  "etymology_text": "Initial of Zithromax (“Pfizer's proprietary name for azithromycin”) and pack.",
  "forms": [
    {
      "form": "Z-paks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Z-pak (plural Z-paks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English links with redundant alt parameters",
        "English links with redundant wikilinks",
        "English multiword terms",
        "English nouns",
        "English terms with usage examples",
        "Pages with 1 entry"
      ],
      "examples": [
        {
          "text": "The pills in a Z-pak are to be taken as follows: […]",
          "type": "example"
        }
      ],
      "glosses": [
        "A package of six pills, each one containing 250 mg of the antibacterial azithromycin."
      ],
      "links": [
        [
          "azithromycin",
          "azithromycin"
        ]
      ]
    }
  ],
  "word": "Z-pak"
}