"pseudothumb" meaning in English

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  "etymology_text": "From pseudo- + thumb.",
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    {
      "form": "pseudothumbs",
      "tags": [
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  "pos": "noun",
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          "ref": "2008, Heather Angel, Panda:",
          "text": "But a panda's forepaws are specially adapted for manipulating bamboo stems, with a modified elongated wrist bone forming the pseudothmb covered by a fleshy pad.",
          "type": "quote"
        },
        {
          "ref": "2016, Tim Halliday, The Book of Frogs, page 542:",
          "text": "The extra digit is a \"pseudothumb” containing a sheathed spine that can be pushed out.",
          "type": "quote"
        },
        {
          "ref": "2021, Jonathan Bard, Evolution: The Origins and Mechanisms of Diversity, page 257:",
          "text": "There are also at least two examples of more complex ectopic digits. The first is in the aye-aye, a Madagascan lemur, which has a distinct pseudothumb on its forelimb consisting of a bony part that is an expanded radial sesamoid and a dense cartilaginous extension (Hartstone-Rose et al., 2019). This pseudothumb receives attachments from muscles that facilitate abduction, adduction, and opposition, which together facilitate dexterity.",
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        "A digit on a vertebrate that resembles but is not a thumb."
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  "word": "pseudothumb"
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          "ref": "2008, Heather Angel, Panda:",
          "text": "But a panda's forepaws are specially adapted for manipulating bamboo stems, with a modified elongated wrist bone forming the pseudothmb covered by a fleshy pad.",
          "type": "quote"
        },
        {
          "ref": "2016, Tim Halliday, The Book of Frogs, page 542:",
          "text": "The extra digit is a \"pseudothumb” containing a sheathed spine that can be pushed out.",
          "type": "quote"
        },
        {
          "ref": "2021, Jonathan Bard, Evolution: The Origins and Mechanisms of Diversity, page 257:",
          "text": "There are also at least two examples of more complex ectopic digits. The first is in the aye-aye, a Madagascan lemur, which has a distinct pseudothumb on its forelimb consisting of a bony part that is an expanded radial sesamoid and a dense cartilaginous extension (Hartstone-Rose et al., 2019). This pseudothumb receives attachments from muscles that facilitate abduction, adduction, and opposition, which together facilitate dexterity.",
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