(A) au naturel (adj; French): "1: cooked or served plainly
2a : being in natural style or condition b : NUDE"
"2a" is the most common usage in US, and the meaning in my title.
All definitions are from www.m-w.com
(B) Rachel Dodes, We Don't Mind the Gap: The Fashionable Flash a New Smile.
Wall Street Journal, Sept. 9, 2010. http://online.wsj.com/article/SB10001424052748703720004575478213601248720.html
Note:
(1) David Delfin http://www.davidelfin.com/
The online edition of this report displays mor
