"trop-" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "atropine"
      },
      "expansion": "atropine",
      "name": "m"
    }
  ],
  "etymology_text": "From atropine.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "trop-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "trop-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "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": "Pharmaceutical drugs",
          "orig": "en:Pharmaceutical drugs",
          "parents": [
            "Drugs",
            "Matter",
            "Pharmacology",
            "Chemistry",
            "Nature",
            "Biochemistry",
            "Medicine",
            "Sciences",
            "All topics",
            "Biology",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Used to form names of atropine derivatives."
      ],
      "id": "en-trop--en-prefix-Uji3lgrm",
      "links": [
        [
          "pharmacology",
          "pharmacology"
        ],
        [
          "atropine",
          "atropine#English"
        ],
        [
          "derivative",
          "derivative#English"
        ]
      ],
      "raw_glosses": [
        "(pharmacology) Used to form names of atropine derivatives."
      ],
      "synonyms": [
        {
          "word": "-trop-"
        }
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "medicine",
        "pharmacology",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/tɹə(ʊ)p/",
      "tags": [
        "Received-Pronunciation"
      ]
    },
    {
      "ipa": "/tɹəp/",
      "tags": [
        "General-American"
      ]
    },
    {
      "ipa": "/tɹoʊp/",
      "tags": [
        "General-American"
      ]
    }
  ],
  "word": "trop-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "atropine"
      },
      "expansion": "atropine",
      "name": "m"
    }
  ],
  "etymology_text": "From atropine.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "trop-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "trop-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
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      "categories": [
        "English 1-syllable words",
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      ],
      "glosses": [
        "Used to form names of atropine derivatives."
      ],
      "links": [
        [
          "pharmacology",
          "pharmacology"
        ],
        [
          "atropine",
          "atropine#English"
        ],
        [
          "derivative",
          "derivative#English"
        ]
      ],
      "raw_glosses": [
        "(pharmacology) Used to form names of atropine derivatives."
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "medicine",
        "pharmacology",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/tɹə(ʊ)p/",
      "tags": [
        "Received-Pronunciation"
      ]
    },
    {
      "ipa": "/tɹəp/",
      "tags": [
        "General-American"
      ]
    },
    {
      "ipa": "/tɹoʊp/",
      "tags": [
        "General-American"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "-trop-"
    }
  ],
  "word": "trop-"
}