"shear wave" meaning in English

{
  "forms": [
    {
      "form": "shear waves",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "shear wave (plural shear waves)",
      "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": "topical",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A wave that changes the medium through which it travels to change its shape but not its volume or density."
      ],
      "hypernyms": [
        {
          "word": "wave"
        }
      ],
      "id": "en-shear_wave-en-noun-gRW8YU6f",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "medium",
          "medium"
        ],
        [
          "shape",
          "shape"
        ],
        [
          "volume",
          "volume"
        ],
        [
          "density",
          "density"
        ]
      ],
      "raw_glosses": [
        "(physics) A wave that changes the medium through which it travels to change its shape but not its volume or density."
      ],
      "synonyms": [
        {
          "word": "S wave"
        },
        {
          "word": "secondary wave"
        }
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "translations": [
        {
          "alt": "mawja(t) S",
          "code": "ar",
          "lang": "Arabic",
          "sense": "shear wave",
          "tags": [
            "feminine"
          ],
          "word": "مَوْجَة S"
        },
        {
          "code": "zh",
          "lang": "simplified Chinese",
          "sense": "shear wave",
          "word": "S波"
        },
        {
          "code": "zh",
          "lang": "Chinese traditional",
          "sense": "shear wave",
          "word": "S簸"
        },
        {
          "code": "wuu",
          "lang": "Wu Chinese",
          "sense": "shear wave",
          "word": "S波"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "shear wave",
          "tags": [
            "feminine"
          ],
          "word": "S-Welle"
        },
        {
          "code": "ko",
          "english": "Spa",
          "lang": "Korean",
          "sense": "shear wave",
          "word": "S파"
        },
        {
          "code": "fa",
          "lang": "Persian",
          "sense": "shear wave",
          "word": "موج اس"
        },
        {
          "code": "sh",
          "lang": "Serbo-Croatian",
          "sense": "shear wave",
          "tags": [
            "Cyrillic"
          ],
          "word": "С талас"
        },
        {
          "code": "tr",
          "lang": "Turkish",
          "sense": "shear wave",
          "word": "S dalgası"
        }
      ]
    }
  ],
  "word": "shear wave"
}

{
  "forms": [
    {
      "form": "shear waves",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "shear wave (plural shear waves)",
      "name": "en-noun"
    }
  ],
  "hypernyms": [
    {
      "word": "wave"
    }
  ],
  "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",
        "Serbo-Croatian term requests",
        "en:Physics"
      ],
      "glosses": [
        "A wave that changes the medium through which it travels to change its shape but not its volume or density."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "medium",
          "medium"
        ],
        [
          "shape",
          "shape"
        ],
        [
          "volume",
          "volume"
        ],
        [
          "density",
          "density"
        ]
      ],
      "raw_glosses": [
        "(physics) A wave that changes the medium through which it travels to change its shape but not its volume or density."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "S wave"
    },
    {
      "word": "secondary wave"
    }
  ],
  "translations": [
    {
      "alt": "mawja(t) S",
      "code": "ar",
      "lang": "Arabic",
      "sense": "shear wave",
      "tags": [
        "feminine"
      ],
      "word": "مَوْجَة S"
    },
    {
      "code": "zh",
      "lang": "simplified Chinese",
      "sense": "shear wave",
      "word": "S波"
    },
    {
      "code": "zh",
      "lang": "Chinese traditional",
      "sense": "shear wave",
      "word": "S簸"
    },
    {
      "code": "wuu",
      "lang": "Wu Chinese",
      "sense": "shear wave",
      "word": "S波"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "shear wave",
      "tags": [
        "feminine"
      ],
      "word": "S-Welle"
    },
    {
      "code": "ko",
      "english": "Spa",
      "lang": "Korean",
      "sense": "shear wave",
      "word": "S파"
    },
    {
      "code": "fa",
      "lang": "Persian",
      "sense": "shear wave",
      "word": "موج اس"
    },
    {
      "code": "sh",
      "lang": "Serbo-Croatian",
      "sense": "shear wave",
      "tags": [
        "Cyrillic"
      ],
      "word": "С талас"
    },
    {
      "code": "tr",
      "lang": "Turkish",
      "sense": "shear wave",
      "word": "S dalgası"
    }
  ],
  "word": "shear wave"
}