Named after the famous chemist Walther Nernst. Describes someone or something with vast scientific knowledge and/or devastating good looks.
"Dude, that's the nernstiest chick I've ever seen!"
by gFish June 22, 2004
Someone with a wide variety of ubergooberian technical knowledge who is also rather fetching, preferably mustachioed can be called 'nernsty'.
Her labcoat really brought out the, erm, nernsts on that nernsty technician, an effect heightened by her mustache.
by mark June 25, 2004