"yield stress" meaning in English

{
  "forms": [
    {
      "form": "yield stresses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "yield stress (plural yield stresses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
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          "source": "w"
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        {
          "kind": "other",
          "langcode": "en",
          "name": "Materials science",
          "orig": "en:Materials science",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonym of yield strength."
      ],
      "id": "en-yield_stress-en-noun-reD7dz--",
      "links": [
        [
          "yield strength",
          "yield strength#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "yield strength"
        }
      ]
    }
  ],
  "word": "yield stress"
}

{
  "forms": [
    {
      "form": "yield stresses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "yield stress (plural yield stresses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Materials science"
      ],
      "glosses": [
        "Synonym of yield strength."
      ],
      "links": [
        [
          "yield strength",
          "yield strength#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "yield strength"
        }
      ]
    }
  ],
  "word": "yield stress"
}