"second moment of area" meaning in English

{
  "forms": [
    {
      "form": "second moments of area",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "second moments of area"
      },
      "expansion": "second moment of area (plural second moments of area)",
      "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 entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Engineering",
          "orig": "en:Engineering",
          "parents": [
            "Applied sciences",
            "Technology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Physical quantities",
          "orig": "en:Physical quantities",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A measure of a body's resistance to bending."
      ],
      "id": "en-second_moment_of_area-en-noun-PkxqE4OH",
      "links": [
        [
          "engineering",
          "engineering#Noun"
        ],
        [
          "measure",
          "measure"
        ],
        [
          "resistance",
          "resistance"
        ],
        [
          "bend",
          "bend"
        ]
      ],
      "raw_glosses": [
        "(engineering) A measure of a body's resistance to bending."
      ],
      "synonyms": [
        {
          "sense": "measure of resistance to bending",
          "word": "second moment of inertia"
        },
        {
          "sense": "measure of resistance to bending",
          "word": "moment of inertia"
        }
      ],
      "topics": [
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "measure of resistance to bending",
          "word": "jäyhyysmomentti"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "measure of resistance to bending",
          "tags": [
            "neuter"
          ],
          "word": "Flächenträgheitsmoment"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "measure of resistance to bending",
          "tags": [
            "neuter"
          ],
          "word": "Flächenmoment 2. Grades"
        },
        {
          "code": "el",
          "lang": "Greek",
          "roman": "ropí adráneias epifáneias",
          "sense": "measure of resistance to bending",
          "tags": [
            "feminine"
          ],
          "word": "ροπή αδράνειας επιφάνειας"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "osevój momént inércii sečénija",
          "sense": "measure of resistance to bending",
          "tags": [
            "masculine"
          ],
          "word": "осево́й моме́нт ине́рции сече́ния"
        }
      ]
    }
  ],
  "word": "second moment of area"
}

{
  "forms": [
    {
      "form": "second moments of area",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "second moments of area"
      },
      "expansion": "second moment of area (plural second moments of area)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Engineering",
        "en:Physical quantities"
      ],
      "glosses": [
        "A measure of a body's resistance to bending."
      ],
      "links": [
        [
          "engineering",
          "engineering#Noun"
        ],
        [
          "measure",
          "measure"
        ],
        [
          "resistance",
          "resistance"
        ],
        [
          "bend",
          "bend"
        ]
      ],
      "raw_glosses": [
        "(engineering) A measure of a body's resistance to bending."
      ],
      "topics": [
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "measure of resistance to bending",
      "word": "second moment of inertia"
    },
    {
      "sense": "measure of resistance to bending",
      "word": "moment of inertia"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "measure of resistance to bending",
      "word": "jäyhyysmomentti"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "measure of resistance to bending",
      "tags": [
        "neuter"
      ],
      "word": "Flächenträgheitsmoment"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "measure of resistance to bending",
      "tags": [
        "neuter"
      ],
      "word": "Flächenmoment 2. Grades"
    },
    {
      "code": "el",
      "lang": "Greek",
      "roman": "ropí adráneias epifáneias",
      "sense": "measure of resistance to bending",
      "tags": [
        "feminine"
      ],
      "word": "ροπή αδράνειας επιφάνειας"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "osevój momént inércii sečénija",
      "sense": "measure of resistance to bending",
      "tags": [
        "masculine"
      ],
      "word": "осево́й моме́нт ине́рции сече́ния"
    }
  ],
  "word": "second moment of area"
}