In`co*er"ci*ble (?), a. [Pref. in-
not + coercible: cf. F. incoercible.]
1. Not to be coerced; incapable of being
compelled or forced.
2. (Physics) 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.
3. (Physics) That can note be confined
in, or excluded from, vessels, like ordinary fluids, gases, etc.; --
said of the imponderable fluids, heat, light, electricity,
etc.