資料來源 : pyDict

大拇指的指甲,極小之物極小的,極短的

資料來源 : WordNet®

thumbnail
     n : the nail of the thumb

資料來源 : Free On-Line Dictionary of Computing

thumbnail
     
         (From "thumbnail sketch") A file
        format used by {Graphics Workshop} for {Microsoft Windows}.
        {Filename extension}: ".thn".
     
        [What's in the files?]
     
        (1996-05-28)