Definition of off-gas in English:

Share this entry


Pronunciation: /ˈôfˌɡas/


A gas that is given off, especially one emitted as the byproduct of a chemical process.
Example sentences
  • In conjunction with the new smelting configuration, an Acid Plant would be constructed to convert the off-gas into sulphuric acid that can be used in metallurgical leach projects.
  • In any event the plant design includes highly efficient dust filter plants at a cost of some N $26 million to capture furnace off-gases and dust.
  • A lot of materials actually give off gas, and that gas can be toxic, and by selecting the right carpets the right sort of paints, we have used ones that don't give off toxic off-gases.


[no object]
Give off a chemical, especially a harmful one, in the form of a gas.
Example sentences
  • This works pretty well but whatever chemical is in the drycleaning cloth you use will off-gas from your clothes like crazy for a day or two.
  • But even after that, the plywood or particleboard under the veneer will continue to off-gas for several more years.
  • Many of these compounds continue to off-gas well after installation and are contributors to poor indoor air quality.

For editors and proofreaders

Syllabification: off-gas

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.