"microphysics" meaning in English

{
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      "micro-",
      "micro-#English:_very_small"
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      "physics#English"
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      "expansion": "From micro- + physics.",
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      "expansion": "Etymology tree\nProto-Indo-European *mey-der.?\nAncient Greek μῑκρός (mīkrós)\nAncient Greek μῑκρο- (mīkro-)lbor.\nEnglish micro-\nProto-Indo-European *bʰuH-\nProto-Indo-European *-yéti\nProto-Indo-European *bʰuHyéti\nAncient Greek φῠ́ω (phŭ́ō)\nProto-Indo-European *-tis\nProto-Hellenic *-tis\nAncient Greek -τῐς (-tĭs)\nAncient Greek -σῐς (-sĭs)\nAncient Greek φύσις (phúsis)\nProto-Indo-European *-kos\nProto-Hellenic *-kos\nAncient Greek -κός (-kós)\nAncient Greek -ικός (-ikós)\nAncient Greek φυσικός (phusikós)der.\nLatin physicusder.\nMiddle English phisik\nEnglish physic\nEnglish physics\nEnglish microphysics\nFrom micro- + physics.",
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  "etymology_text": "From micro- + physics.",
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  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
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      ],
      "glosses": [
        "The branch of physics that deals with objects smaller than a molecule"
      ],
      "id": "en-microphysics-en-noun-XBoHUERq",
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          "physics",
          "physics"
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          "branch",
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        [
          "physics",
          "physics"
        ],
        [
          "objects",
          "objects"
        ],
        [
          "molecule",
          "molecule"
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      "raw_glosses": [
        "(physics) The branch of physics that deals with objects smaller than a molecule"
      ],
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        "uncountable"
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      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "lang_code": "fi",
          "sense": "branch of physics",
          "word": "mikrofysiikka"
        },
        {
          "code": "gl",
          "lang": "Galician",
          "lang_code": "gl",
          "sense": "branch of physics",
          "tags": [
            "feminine"
          ],
          "word": "microfísica"
        },
        {
          "code": "it",
          "lang": "Italian",
          "lang_code": "it",
          "sense": "branch of physics",
          "tags": [
            "feminine"
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          "word": "microfisica"
        }
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{
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      "micro-#English:_very_small"
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  "etymology_text": "From micro- + physics.",
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
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      ],
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          "branch",
          "branch"
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        ],
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          "objects",
          "objects"
        ],
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          "molecule",
          "molecule"
        ]
      ],
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        "(physics) The branch of physics that deals with objects smaller than a molecule"
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
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  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "lang_code": "fi",
      "sense": "branch of physics",
      "word": "mikrofysiikka"
    },
    {
      "code": "gl",
      "lang": "Galician",
      "lang_code": "gl",
      "sense": "branch of physics",
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        "feminine"
      ],
      "word": "microfísica"
    },
    {
      "code": "it",
      "lang": "Italian",
      "lang_code": "it",
      "sense": "branch of physics",
      "tags": [
        "feminine"
      ],
      "word": "microfisica"
    }
  ],
  "word": "microphysics"
}