Tenuous substance (3)
I believe the answer is:
gas
(Other definitions for gas that I've seen before include "Talk excessively" , "Wind" , "Fumes, vapour" , "Oxygen is one" , "Possibly noble" .)
I believe the answer is:
gas
(Other definitions for gas that I've seen before include "Talk excessively" , "Wind" , "Fumes, vapour" , "Oxygen is one" , "Possibly noble" .)