Performance by Lady Macbeth

• Walking by a person who is asleep

Wiktionary Word definitions in Wiktionary
n. 1 (context rare English) The phenomenon of sleepwalking. 2 (context rare English) An instance of sleepwalking.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
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 .

WordNet Word definitions in WordNet
n. walking by a person who is asleep [syn: sleepwalking , somnambulism , noctambulism , noctambulation ]

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1789, noun of action; see somnambulism .