powder room
noun [ C usually singular ] uk/ˈpaʊ.də ˌruːm/ us/ˈpaʊ.dɚ ˌruːm/
（婉语）女盥洗室
a polite word for a women's toilet in a public building, such as a restaurant, hotel, theatre, etc.
Synonyms: ladies (lady) ladies' room
Compare: toilet (CONTAINER) bathroom