birthing pool
noun [ C ] uk/ˈbɜː.θɪŋ ˌpuːl/ us/ˈbɜ˞ː.θɪŋ ˌpuːl/ (also birth pool)
分娩浴盆
a small pool filled with warm water that a woman can sit in when she is in labour (= having a baby) in order to make her feel more comfortable. The baby can be born into the pool.