décolletage

enUK

dé·colle·tage

D0077600 (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.]

décolletage

(ˌdeɪkɒlˈtɑːʒ; French dekɔltaʒ) n (Clothing & Fashion) a low-cut neckline or a woman's garment with a low neck[C19: from French; see décolleté]

dé•col•le•tage

or de•col•le•tage

(ˌdeɪ kɒl əˈtɑʒ, ˌdɛk ə lə-)

n. 1. the neckline of a dress cut low in the front or back and often across the shoulders. 2. a décolleté garment or costume. [1890–95; < French]
Thesaurus
Noun1.decolletage - a low-cut neckline on a woman's dressneckline - the line formed by the edge of a garment around the neck