noctambulist

from WordNet (r) 3.0 (2006)
noctambulist
    n 1: someone who walks about in their sleep [syn: {sleepwalker},
         {somnambulist}, {noctambulist}]
    
from The Collaborative International Dictionary of English v.0.48
Noctambulist \Noc*tam"bu*list\, n.
   A somnambulist; a sleepwalker.
   [1913 Webster]
    

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