Definitions

from The Century Dictionary.

  • noun The act of walking about, with the performance of apparently purposive acts, while in a state intermediate between sleep and waking.

from the GNU version of the Collaborative International Dictionary of English.

  • noun 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun sleepwalking

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun walking by a person who is asleep

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin somnus ("sleep") and ambulāre ("to walk"), with the -ism suffix from Ancient Greek -ισμός, through Latin -ismus.

Examples

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