bladder

Từ điển Oxford Advanced Learner 8th

blad·der [bladder bladders] BrE [ˈblædə(r)] NAmE [ˈblædər] noun
1. an organ that is shaped like a bag in which liquid waste (= ↑urine ) collects before it is passed out of the body
see also ↑gall bladder
2. a bag made of rubber, leather, etc. that can be filled with air or liquid, such as the one inside a football

Word Origin:
Old English blǣdre, of Germanic origin; related to Dutch blaar and German Blatter, also to the verb ↑blow.

Example Bank:
•He died of bladder cancer.