"bromo-" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "bromin",
        "3": "",
        "4": "bromine"
      },
      "expansion": "bromin (“bromine”)",
      "name": "m"
    }
  ],
  "etymology_text": "The root of bromin (“bromine”).",
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "prefix"
      },
      "expansion": "bromo-",
      "name": "head"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "cy",
          "name": "Bromine",
          "orig": "cy:Bromine",
          "parents": [
            "Halogens",
            "Chemical elements",
            "Matter",
            "Chemistry",
            "Nature",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "bromo- (containing bromine)"
      ],
      "id": "en-bromo--cy-prefix-L3fMoajE",
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "bromo-",
          "bromo-#English"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) bromo- (containing bromine)"
      ],
      "synonyms": [
        {
          "tags": [
            "before-vowel"
          ],
          "word": "brom-"
        }
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "word": "bromo-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "bromin",
        "3": "",
        "4": "bromine"
      },
      "expansion": "bromin (“bromine”)",
      "name": "m"
    }
  ],
  "etymology_text": "The root of bromin (“bromine”).",
  "head_templates": [
    {
      "args": {
        "1": "cy",
        "2": "prefix"
      },
      "expansion": "bromo-",
      "name": "head"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "Welsh entries with incorrect language header",
        "Welsh lemmas",
        "Welsh prefixes",
        "cy:Bromine",
        "cy:Functional group prefixes"
      ],
      "glosses": [
        "bromo- (containing bromine)"
      ],
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "bromo-",
          "bromo-#English"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) bromo- (containing bromine)"
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "before-vowel"
      ],
      "word": "brom-"
    }
  ],
  "word": "bromo-"
}