Difficult or impossible to coerce or control forcibly.
Incapable of reduction to tangible condition by pressure: applied to forms of energy, such as heat and electricity, when they were thought of as extremely subtile fluids.
Not to be coerced or compelled; incapable of being constrained or forced.
In physics, incapable of being reduced to a liquid form by any amount of pressure. Certain gases were formerly supposed to have this property. See
Not to be coerced; incapable of being compelled or forced.adjective
Not capable of being reduced to the form of a liquid by pressure; — said of any gas above its
That can note be confined in, or excluded from, vessels, like ordinary fluids, gases, etc.; — said of the imponderable fluids, heat, light, electricity, etc.adjective
Not to be
Not capable of being reduced to