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 (nŏk-tăm′byə-lĭz′əm) also noc·tam·bu·la·tion (-tăm′byə-lā′shən)
[noct(i)- + Latin ambulāre, to walk + -ism.]

noc·tam′bu·list n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.noctambulist - someone who walks about in their sleepnoctambulist - someone who walks about in their sleep
sleeper, slumberer - a rester who is sleeping
References in periodicals archive ?
This is the stuff dreams are made of, and given the same situation, we'd become the star-struck noctambulist Gil is.
Urban Otaku: Electric Lighting and the Noctambulist
The first was the playful world of sheep invented by Helene Guetary in 1993 for the Franco-German channel ARTE: at the end of the programming, actors played sheep indefinitely jumping over a fence to lull noctambulists to certain sleep.