'Somnambulation' definitions:

Definition of 'somnambulation'

From: WordNet
noun
Walking by a person who is asleep [syn: sleepwalking, somnambulism, somnambulation, noctambulism, noctambulation]

Definition of 'Somnambulation'

From: GCIDE
  • Somnambulation \Som*nam`bu*la"tion\, n. [L. somnus sleep + ambulatio a walking about, from ambulare to walk. See Somnolent, Amble.] The act of walking in sleep, called also sleepwalking. [1913 Webster]