flow-through design

noun
UK /ˈfləʊ θruː dɪˈzaɪn/
US /ˈfloʊ θruː dɪˈzaɪn/

A way of making something so air, water, or people can move easily from one side to the other.

The new water bottle has a flow-through design that lets you drink without unscrewing the cap.


OTHER MEANINGS

2. A tax or business arrangement where money passes through one entity to another without being kept.

The fund uses a flow-through design so profits are taxed only once.

3. A layout in a building or space that lets people walk straight through without turning back.

The museum's flow-through design guides visitors from the entrance to the exit in one smooth path.

4. A system in machines where fluid or gas moves continuously rather than being stored.

The engine's flow-through design keeps the oil cool during long drives.