"halo-" meaning in English

{
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "ἅλς",
        "4": "",
        "5": "sea, salt"
      },
      "expansion": "Ancient Greek ἅλς (háls, “sea, salt”)",
      "name": "der"
    }
  ],
  "etymology_text": "Combining form of Ancient Greek ἅλς (háls, “sea, salt”).",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "halo-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "halo-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "_dis": "49 51",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "sea, salt, salt water"
      ],
      "id": "en-halo--en-prefix-2iZ7UzlM",
      "links": [
        [
          "sea",
          "sea"
        ],
        [
          "salt",
          "salt"
        ]
      ],
      "tags": [
        "morpheme"
      ],
      "translations": [
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "salt",
          "word": "halo-"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "salt",
          "word": "hali-"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "salt",
          "word": "halo-"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "salt",
          "word": "halo-"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈhæləʊ/"
    }
  ],
  "word": "halo-"
}

{
  "etymology_number": 2,
  "etymology_text": "From halogen.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "halo-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "halo-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Chemistry",
          "orig": "en:Chemistry",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "49 51",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Forming names of chemical compounds which contain one or more halogen atoms."
      ],
      "id": "en-halo--en-prefix-CzHkAaBT",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "halogen",
          "halogen"
        ]
      ],
      "raw_glosses": [
        "(chemistry) Forming names of chemical compounds which contain one or more halogen atoms."
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈhæləʊ/"
    }
  ],
  "word": "halo-"
}

{
  "categories": [
    "English 2-syllable words",
    "English entries with incorrect language header",
    "English lemmas",
    "English prefixes",
    "English terms derived from Ancient Greek",
    "English terms with IPA pronunciation"
  ],
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "ἅλς",
        "4": "",
        "5": "sea, salt"
      },
      "expansion": "Ancient Greek ἅλς (háls, “sea, salt”)",
      "name": "der"
    }
  ],
  "etymology_text": "Combining form of Ancient Greek ἅλς (háls, “sea, salt”).",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "halo-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "halo-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "glosses": [
        "sea, salt, salt water"
      ],
      "links": [
        [
          "sea",
          "sea"
        ],
        [
          "salt",
          "salt"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈhæləʊ/"
    }
  ],
  "translations": [
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "salt",
      "word": "halo-"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "salt",
      "word": "hali-"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "salt",
      "word": "halo-"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "salt",
      "word": "halo-"
    }
  ],
  "word": "halo-"
}

{
  "categories": [
    "English 2-syllable words",
    "English entries with incorrect language header",
    "English lemmas",
    "English prefixes",
    "English terms with IPA pronunciation"
  ],
  "etymology_number": 2,
  "etymology_text": "From halogen.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "halo-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "halo-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "en:Chemistry"
      ],
      "glosses": [
        "Forming names of chemical compounds which contain one or more halogen atoms."
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "halogen",
          "halogen"
        ]
      ],
      "raw_glosses": [
        "(chemistry) Forming names of chemical compounds which contain one or more halogen atoms."
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˈhæləʊ/"
    }
  ],
  "word": "halo-"
}