word of the day #1

"The Devil in the White City" has a lot of words I've never seen before, so I've found myself reading it with a pocket dictionary by my side.  

I try to use to techniques that I learned in my Etymology (the study of words; ENTOMOLOGY is the study of bugs, FYI) class junior year before I grab the dictionary.

So I decided to help you guys broaden your vocabulary as well by posting a new word every day. :]

Somnambulism (n.) - an abnormal condition of sleep in which motor acts (as walking) are performed.