Incoercible

·adj Not to be coerced; incapable of being compelled or forced.

II. Incoercible ·adj That can note be confined in, or excluded from, vessels, like ordinary fluids, gases, ·etc.;

— said of the imponderable fluids, heat, light, electricity, ·etc.

III. Incoercible ·adj Not capable of being reduced to the form of a liquid by pressure;

— said of any gas above its critical point;

— also particularly of oxygen, hydrogen, nitrogen, and carbon monoxide, formerly regarded as incapable of liquefaction at any temperature or pressure.