'low-cut' definitions:

Definition of 'low-cut'

(from WordNet)
adjective
(of a garment) having a low-cut neckline; "a low-cut neckline" [syn: decollete, low-cut, low-necked]
adjective
Having a low-cut back; "a backless dress"

Definition of 'low-cut'

From: GCIDE
  • low-cut \low-cut\ adj.
  • 1. having a neckline low enough to expose part of the breast; -- of a woman's garment; as, a low-cut party dress.
  • Syn: decollete, low-necked. [WordNet 1.5 +PJC]
  • 2. having a back exposing skin between the shoulder blades. [WordNet 1.5 +PJC] lowdown