"suppressant" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "suppress",
        "3": "ant"
      },
      "expansion": "suppress + -ant",
      "name": "suffix"
    }
  ],
  "etymology_text": "From suppress + -ant.",
  "forms": [
    {
      "form": "suppressants",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "suppressant (plural suppressants)",
      "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"
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          "source": "w"
        },
        {
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          "name": "English terms suffixed with -ant",
          "parents": [],
          "source": "w"
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          "name": "Terms with Spanish translations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A substance that suppresses."
      ],
      "id": "en-suppressant-en-noun-fU53U3tJ",
      "links": [
        [
          "suppress",
          "suppress"
        ]
      ],
      "translations": [
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Translations",
          "word": "suprimiente"
        }
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɛsənt"
    }
  ],
  "word": "suppressant"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "suppress",
        "3": "ant"
      },
      "expansion": "suppress + -ant",
      "name": "suffix"
    }
  ],
  "etymology_text": "From suppress + -ant.",
  "forms": [
    {
      "form": "suppressants",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "suppressant (plural suppressants)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
        "English entries with incorrect language header",
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        "English terms suffixed with -ant",
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        "Translation table header lacks gloss"
      ],
      "glosses": [
        "A substance that suppresses."
      ],
      "links": [
        [
          "suppress",
          "suppress"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɛsənt"
    }
  ],
  "translations": [
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "word": "suprimiente"
    }
  ],
  "word": "suppressant"
}