toilet bowl
US /ˈtɔɪ.lət ˌboʊl/
UK /ˈtɔɪ.lət ˌboʊl/

1.
the bowl-shaped part of a toilet that holds water and collects waste
:
•
He cleaned the toilet bowl thoroughly with a brush.
•
The water level in the toilet bowl was low.
the bowl-shaped part of a toilet that holds water and collects waste