Vacuole
/ˈvækjuəʊl/
Definition 1 of 2
Pro Tip 1/3Biology Focus
The term vacuole is specific to biology, particularly cell biology, so use it in scientific contexts. 
In biology class, we learned that the vacuole stores nutrients for the cell.
Pro Tip 2/3Plant Structure
Vacuoles are especially prominent in plant cells, where they help in maintaining rigidity. 
The vacuole within the plant cell acts like a balloon to keep the cell turgid.
Pro Tip 3/3Not Always Small
While often described as small, some vacuoles can occupy a large part of the cell's interior. 
The central vacuole in this diagram occupies most of the cell's space.