bladder
n. countablen. the part of your body that holds liquid waste before it leaves your body. It is shaped like a small bag and expands as it fills up.
n. a hollow, muscular organ in humans and other vertebrates that stores urine from the kidneys before disposal by urination. In broader biological contexts, refers to any sac or vesicle containing fluid or gas.
I need to find a bathroom because my bladder is full.
Drinking too much coffee can irritate the bladder and make you feel like you need to go more often.
The surgeon carefully examined the wall of the bladder for any signs of inflammation or abnormal cell growth during the routine procedure.
From Middle English bladdre, bleddre, bladder, bledder, from Old English blæddre, a variant of blǣdre, blēdre (“blister, bladder”), from Proto-West Germanic blādrā, from Proto-Germanic blēdrǭ, *bladrǭ (“blister, bladder”).
Commonly used in medical contexts or everyday conversation regarding physical needs.