A vacuum is a space that is completely empty. It doesn´t even have air.
The expression so and so doesn´t live/exist in a vacuum is used to express the fact that all of us are influenced by the world around us.
vacuum is the absense of pressure
vacuum - i
In a vacuum no living thing can live. Anything that needs something else to survive cannot live. Same thing with a solid.
They mean that there are no air particles in space.
The different flashing lights on the Roomba vacuum mean refer to different status of the battery.
it means your a vacum.
It's a space where there is no matter. A perfect vacuum will have no gas particles at all.
If you mean radio-frequency, yes, all electromagnetic waves can travel in a vacuum.
an electron tube containing a near-vacuum that allows the free passage of electric current.
As an adjective, it means empty.
get a vacuum and suck it up...
Humans can, if that's what you mean.