"cef-" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "cefalosporin",
        "text": "+",
        "tree": "1"
      },
      "expansion": "Etymology tree\nEnglish cefalosporin\nEnglish cef-\nFrom cefalosporin.",
      "name": "etymon"
    }
  ],
  "etymology_text": "Etymology tree\nEnglish cefalosporin\nEnglish cef-\nFrom cefalosporin.",
  "head_templates": [
    {
      "args": {},
      "expansion": "cef-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries referencing missing etymons",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with etymology texts",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using etymon with no ID",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Pharmaceutical drugs",
          "orig": "en:Pharmaceutical drugs",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Used to form names of cefalosporanic acid derivative used as antibiotics."
      ],
      "id": "en-cef--en-prefix-raWCKA6k",
      "links": [
        [
          "pharmacology",
          "pharmacology"
        ],
        [
          "cefalosporanic acid",
          "cefalosporanic acid#English"
        ],
        [
          "derivative",
          "derivative#English"
        ],
        [
          "antibiotic",
          "antibiotic#English"
        ]
      ],
      "raw_glosses": [
        "(pharmacology) Used to form names of cefalosporanic acid derivative used as antibiotics."
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "medicine",
        "pharmacology",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sɛf/"
    }
  ],
  "word": "cef-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "cefalosporin",
        "text": "+",
        "tree": "1"
      },
      "expansion": "Etymology tree\nEnglish cefalosporin\nEnglish cef-\nFrom cefalosporin.",
      "name": "etymon"
    }
  ],
  "etymology_text": "Etymology tree\nEnglish cefalosporin\nEnglish cef-\nFrom cefalosporin.",
  "head_templates": [
    {
      "args": {},
      "expansion": "cef-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "English entries referencing missing etymons",
        "English entries with etymology texts",
        "English entries with etymology trees",
        "English entries with incorrect language header",
        "English lemmas",
        "English prefixes",
        "Pages using catfix",
        "Pages using etymon with no ID",
        "Pages with 1 entry",
        "Pages with entries",
        "Pages with etymology trees",
        "en:Pharmaceutical drugs"
      ],
      "glosses": [
        "Used to form names of cefalosporanic acid derivative used as antibiotics."
      ],
      "links": [
        [
          "pharmacology",
          "pharmacology"
        ],
        [
          "cefalosporanic acid",
          "cefalosporanic acid#English"
        ],
        [
          "derivative",
          "derivative#English"
        ],
        [
          "antibiotic",
          "antibiotic#English"
        ]
      ],
      "raw_glosses": [
        "(pharmacology) Used to form names of cefalosporanic acid derivative used as antibiotics."
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "medicine",
        "pharmacology",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sɛf/"
    }
  ],
  "word": "cef-"
}