dé·colle·tage 
(dā′kôl-täzh)
(dā′kôl-täzh)n.
1. A low neckline on a woman's garment, especially a dress.
2. A dress with a low neckline in front.
3. The area of a woman's body that is exposed when a garment with a low neckline is worn.
[French, from décolleté, having a low neckline; see DéCOLLETé.]
décolletagepastel portrait of an
unidentified woman by
Franz Xaver Winterhalter
(1805-1873)