[1] : The Collaborative International Dictionary of English v.0.48

tallis \tal"lis\, n.
   same as tallith.
   webster 1913 suppl.
see also:
tallith 

[2] : WordNet (r) 2.0

tallis
     n 1: english organist and composer of church and secular music;
          was granted a monopoly in music printing with william
          byrd 1505-1585 syn: thomas tallis
     2: judaism a shawl with a ritually knotted fringe at each
        corner; worn by jews at morning prayer syn: prayer shawl,
         tallith
see also:
thomas tallis prayer shawl tallith 

Tallis >> T Words
Tallis, definition of term: Tallis
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