"barber pole illusion" meaning in All languages combined

{
  "forms": [
    {
      "form": "barber pole illusions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "barber pole illusion"
      },
      "expansion": "barber pole illusion (plural barber pole illusions)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Optical illusions",
          "orig": "en:Optical illusions",
          "parents": [
            "Vision",
            "Senses",
            "Perception",
            "Body",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An optical illusion where, when a diagonally striped pole is rotated around its vertical axis (horizontally), it appears as though the stripes are moving in the direction of its vertical axis (downwards in the case of the animation to the right) rather than around it."
      ],
      "id": "en-barber_pole_illusion-en-noun-hrwwNCmi",
      "links": [
        [
          "optical illusion",
          "optical illusion"
        ]
      ],
      "synonyms": [
        {
          "word": "barber pole effect"
        },
        {
          "word": "barber-pole illusion"
        },
        {
          "word": "barberpole illusion"
        }
      ]
    }
  ],
  "word": "barber pole illusion"
}

{
  "forms": [
    {
      "form": "barber pole illusions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "barber pole illusion"
      },
      "expansion": "barber pole illusion (plural barber pole illusions)",
      "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:Optical illusions"
      ],
      "glosses": [
        "An optical illusion where, when a diagonally striped pole is rotated around its vertical axis (horizontally), it appears as though the stripes are moving in the direction of its vertical axis (downwards in the case of the animation to the right) rather than around it."
      ],
      "links": [
        [
          "optical illusion",
          "optical illusion"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "barber pole effect"
    },
    {
      "word": "barber-pole illusion"
    },
    {
      "word": "barberpole illusion"
    }
  ],
  "word": "barber pole illusion"
}