PLUNGING NECKLINE
Meaning of PLUNGING NECKLINE in English
ˌplunging ˈneckline BrE AmE noun [countable]
if a woman’s dress or shirt has a plunging neckline, the top part at the front is very low
Longman Dictionary of Contemporary English.
Longman - Словарь современного английского языка.
2012