decolletage

英 [ˌdeɪkɒlˈtɑːʒ]

美 [ˌdeɪkɑːləˈtɑːʒ]

n.  (女装的)低胸露肩领

COCA.36938

牛津词典

noun

• （女装的）低胸露肩领
  the top edge of a woman's dress, etc. that is designed to be very low in order to show her shoulders and the top part of her breasts

英英释义

noun

• a low-cut neckline on a woman's dress