"cephalon" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "κεφαλή",
        "4": "",
        "5": "head"
      },
      "expansion": "Ancient Greek κεφαλή (kephalḗ, “head”)",
      "name": "uder"
    }
  ],
  "etymology_text": "From Ancient Greek κεφαλή (kephalḗ, “head”).",
  "forms": [
    {
      "form": "cephalons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "cephalon (plural cephalons)",
      "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"
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        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Zoology",
          "orig": "en:Zoology",
          "parents": [
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "cephalic"
        },
        {
          "word": "pseudocephalon"
        }
      ],
      "glosses": [
        "The head of a trilobite."
      ],
      "id": "en-cephalon-en-noun-Zc2qT6wN",
      "links": [
        [
          "zoology",
          "zoology"
        ],
        [
          "head",
          "head"
        ],
        [
          "trilobite",
          "trilobite"
        ]
      ],
      "raw_glosses": [
        "(zoology) The head of a trilobite."
      ],
      "topics": [
        "biology",
        "natural-sciences",
        "zoology"
      ],
      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "the head of a trilobite",
          "tags": [
            "masculine"
          ],
          "word": "céphalon"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈsɛfələn/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈsɛfəlɒn/",
      "tags": [
        "UK"
      ]
    }
  ],
  "word": "cephalon"
}

{
  "derived": [
    {
      "word": "cephalic"
    },
    {
      "word": "pseudocephalon"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "κεφαλή",
        "4": "",
        "5": "head"
      },
      "expansion": "Ancient Greek κεφαλή (kephalḗ, “head”)",
      "name": "uder"
    }
  ],
  "etymology_text": "From Ancient Greek κεφαλή (kephalḗ, “head”).",
  "forms": [
    {
      "form": "cephalons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "cephalon (plural cephalons)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English 3-syllable words",
        "English countable nouns",
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        "English undefined derivations",
        "en:Zoology"
      ],
      "glosses": [
        "The head of a trilobite."
      ],
      "links": [
        [
          "zoology",
          "zoology"
        ],
        [
          "head",
          "head"
        ],
        [
          "trilobite",
          "trilobite"
        ]
      ],
      "raw_glosses": [
        "(zoology) The head of a trilobite."
      ],
      "topics": [
        "biology",
        "natural-sciences",
        "zoology"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈsɛfələn/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/ˈsɛfəlɒn/",
      "tags": [
        "UK"
      ]
    }
  ],
  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "the head of a trilobite",
      "tags": [
        "masculine"
      ],
      "word": "céphalon"
    }
  ],
  "word": "cephalon"
}