The secretary entered the drawing-room with the unembarrassed step of a somnambulist.
But his furtive movements had not the serene impassibility of the somnambulist.
When he had gone, I asked my companion if I was the somnambulist, thirty years old, who had cured so many people.
"Like a—somnambulist," answered Hugh, choosing the word for its intensity.
He was leaning up against me now, just naturally hanging on to me, looking like a somnambulist.
I would sooner have faced a dozen ghosts than a somnambulist.
But occasionally, a somnambulist has missed his footing, fallen, and perished.
Her dark eyes were fixed on the despised view with a look of a somnambulist.
Brimstone and phosphorus are said to have a pleasant scent to the somnambulist, but sometimes it appears completely abolished.
She was as a somnambulist, speaking in her sleep, to the wakeful.
1786, "walking in one's sleep or under hypnosis," from French somnambulisme, from Modern Latin somnambulus "sleepwalker," from Latin somnus "sleep" (see Somnus) + ambulare "to walk" (see amble (v.)).
Originally brought into use during the excitement over "animal magnetism;" it won out over noctambulation. A stack of related words came into use early 19c., e.g. somnambule "sleepwalker" (1837, from French somnambule, 1690s), earlier somnambulator (1803); as adjectives, somnambulary (1827), somnambular (1820).
somnambulism som·nam·bu·lism (sŏm-nām'byə-lĭz'əm)