somnambulism

Noun

Synonyms: sleepwalking somnambulation noctambulism noctambulation

WordNet 3.0

Noun (1)

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

Webster's Dictionary (GCIDE)

Somnambulism \Som*nam"bu*lism\, n. [Cf. F. somnambulisme. See Somnambulation.] A condition of the nervous system in which an individual during sleep performs actions appropriate to the waking state; a state of sleep in which some of the senses and voluntary powers are partially awake; noctambulism. [1913 Webster]