"microexpression" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "micro",
        "3": "expression"
      },
      "expansion": "micro- + expression",
      "name": "prefix"
    }
  ],
  "etymology_text": "From micro- + expression.",
  "forms": [
    {
      "form": "microexpressions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "microexpression (plural microexpressions)",
      "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 micro-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Mandarin terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
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          "source": "w"
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          "parents": [],
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          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Mandarin translations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A fleeting, involuntary facial expression that may reveal private thoughts or emotions."
      ],
      "id": "en-microexpression-en-noun-cvVCLVMS",
      "links": [
        [
          "fleeting",
          "fleeting"
        ],
        [
          "involuntary",
          "involuntary"
        ],
        [
          "facial",
          "facial"
        ],
        [
          "expression",
          "expression"
        ]
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "wēibiǎoqíng",
          "sense": "fleeting facial expression",
          "word": "微表情"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "fleeting facial expression",
          "word": "mikroilme"
        }
      ],
      "wikipedia": [
        "microexpression"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌmaɪkɹəʊ.ɪkˈspɹɛʃən/"
    }
  ],
  "word": "microexpression"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "micro",
        "3": "expression"
      },
      "expansion": "micro- + expression",
      "name": "prefix"
    }
  ],
  "etymology_text": "From micro- + expression.",
  "forms": [
    {
      "form": "microexpressions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "microexpression (plural microexpressions)",
      "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 micro-",
        "Entries with translation boxes",
        "Mandarin terms with redundant transliterations",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with Mandarin translations"
      ],
      "glosses": [
        "A fleeting, involuntary facial expression that may reveal private thoughts or emotions."
      ],
      "links": [
        [
          "fleeting",
          "fleeting"
        ],
        [
          "involuntary",
          "involuntary"
        ],
        [
          "facial",
          "facial"
        ],
        [
          "expression",
          "expression"
        ]
      ],
      "wikipedia": [
        "microexpression"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ˌmaɪkɹəʊ.ɪkˈspɹɛʃən/"
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "wēibiǎoqíng",
      "sense": "fleeting facial expression",
      "word": "微表情"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "fleeting facial expression",
      "word": "mikroilme"
    }
  ],
  "word": "microexpression"
}