somnambulation

Noun

Synonyms: sleepwalking somnambulism noctambulism noctambulation

WordNet 3.0

Noun (1)

walking by a person who is asleepSynonyms: sleepwalking somnambulism noctambulism noctambulation

Webster's Dictionary (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]