"forgetful functor" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "a functor that forgets or drops some or all of its input's structure or properties before mapping to the output"
      ],
      "id": "en-forgetful_functor-en-noun-36VlW4Di",
      "links": [
        [
          "category theory",
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          "functor",
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      "raw_glosses": [
        "(category theory) a functor that forgets or drops some or all of its input's structure or properties before mapping to the output"
      ],
      "synonyms": [
        {
          "sense": "in category theory",
          "word": "stripping functor"
        },
        {
          "sense": "in category theory",
          "word": "underlying functor"
        }
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        "category-theory",
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
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      "translations": [
        {
          "code": "is",
          "lang": "Icelandic",
          "sense": "category theory: a functor that forgets its inputs's structure",
          "tags": [
            "masculine"
          ],
          "word": "gleymskuvarpi"
        }
      ],
      "wikipedia": [
        "forgetful functor"
      ]
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  "word": "forgetful functor"
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  "lang_code": "en",
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        "a functor that forgets or drops some or all of its input's structure or properties before mapping to the output"
      ],
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          "category theory"
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        [
          "functor",
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        "(category theory) a functor that forgets or drops some or all of its input's structure or properties before mapping to the output"
      ],
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        "computing",
        "engineering",
        "mathematics",
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      "sense": "in category theory",
      "word": "stripping functor"
    },
    {
      "sense": "in category theory",
      "word": "underlying functor"
    }
  ],
  "translations": [
    {
      "code": "is",
      "lang": "Icelandic",
      "sense": "category theory: a functor that forgets its inputs's structure",
      "tags": [
        "masculine"
      ],
      "word": "gleymskuvarpi"
    }
  ],
  "word": "forgetful functor"
}