Definition: noctambulism

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Source: WordNet (r) 1.7 

noctambulism
     n : walking by a person who is asleep [syn: sleepwalking, somnambulism,
          somnambulation, noctambulation]

Source: Webster's Revised Unabridged Dictionary (1913) 

Noctambulism \Noc*tam"bu*lism\, n.
   Somnambulism.