0 a very complete cleaning process that includes all parts of something, not just surfaces or places where dirt can be seen:
1 to clean something in a very complete way that includes all its parts, not just its surfaces or places where dirt can be seen:
The Prime Minister promised a "deep clean" of Britain's hospitals to stamp out killer infections.
Employees carried out a deep clean of the premises before today's reopening.
These apartment blocks are filthy. You can't occupy them. They need a deep clean.
Our ten-year-old sofa and matching chair are in dire need of a deep clean.
The nursery remains closed and has undergone a deep clean with strong anti-bacterial products.
There are more doctors and nurses wearing masks and gowns, patients getting tested and rooms being deep cleaned at the hospital these days.
During my time off work I'm planning to deep clean my house and put up some shelves.
When school kids get MRSA infections, one response is to deep-clean the school.
