"subface" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sub",
        "3": "face"
      },
      "expansion": "sub- + face",
      "name": "prefix"
    }
  ],
  "etymology_text": "From sub- + face.",
  "forms": [
    {
      "form": "subfaces",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "subface (plural subfaces)",
      "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"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with sub-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Geometry",
          "orig": "en:Geometry",
          "parents": [
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2015, Zhaosong Lu, Xiaojun Chen, “Generalized Conjugate Gradient Methods for ℓ₁ Regularized Convex Quadratic Programming with Finite Convergence”, in arXiv:",
          "text": "At each iteration, our methods first identify a face of an orthant and then either perform an exact line search along the direction of the negative projected minimum-norm subgradient of the objective function or execute a CG subroutine that conducts a sequence of CG iterations until a CG iterate crosses the boundary of this face or an approximate minimizer of over this face or a subface is found.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Part of a face"
      ],
      "id": "en-subface-en-noun-EvdAXcMq",
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "face",
          "face"
        ]
      ],
      "raw_glosses": [
        "(geometry) Part of a face"
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q1860 (eng)-Flame, not lame-subface.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/1/17/LL-Q1860_%28eng%29-Flame%2C_not_lame-subface.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-subface.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/1/17/LL-Q1860_%28eng%29-Flame%2C_not_lame-subface.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-subface.wav.ogg"
    }
  ],
  "word": "subface"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sub",
        "3": "face"
      },
      "expansion": "sub- + face",
      "name": "prefix"
    }
  ],
  "etymology_text": "From sub- + face.",
  "forms": [
    {
      "form": "subfaces",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "subface (plural subfaces)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms prefixed with sub-",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Geometry"
      ],
      "examples": [
        {
          "ref": "2015, Zhaosong Lu, Xiaojun Chen, “Generalized Conjugate Gradient Methods for ℓ₁ Regularized Convex Quadratic Programming with Finite Convergence”, in arXiv:",
          "text": "At each iteration, our methods first identify a face of an orthant and then either perform an exact line search along the direction of the negative projected minimum-norm subgradient of the objective function or execute a CG subroutine that conducts a sequence of CG iterations until a CG iterate crosses the boundary of this face or an approximate minimizer of over this face or a subface is found.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Part of a face"
      ],
      "links": [
        [
          "geometry",
          "geometry"
        ],
        [
          "face",
          "face"
        ]
      ],
      "raw_glosses": [
        "(geometry) Part of a face"
      ],
      "topics": [
        "geometry",
        "mathematics",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "LL-Q1860 (eng)-Flame, not lame-subface.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/1/17/LL-Q1860_%28eng%29-Flame%2C_not_lame-subface.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-subface.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/1/17/LL-Q1860_%28eng%29-Flame%2C_not_lame-subface.wav/LL-Q1860_%28eng%29-Flame%2C_not_lame-subface.wav.ogg"
    }
  ],
  "word": "subface"
}