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off-gas

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noun \ ˈȯf-ˌgas \

Definition of off-gas

plural off-gases also off-gasses
:a gas that is produced as a by-product of an industrial process or that is given off by a manufactured object or material
  • Refinery off-gases from fluid catalytic cracking could be a source of ethylene.
  • —Predicasts Technology Update

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First Known Use of off-gas

1955

2

off-gas

verb, transitive + intransitive

Definition of off-gas

off-gassed; off-gassing
:to give off a typically harmful gas
  • In addition, OSHA intends to amend the hazard communication provisions of the standard to require hazard warning labels for solid materials capable of off-gassing formaldehyde at levels between 0.1 ppm and 0.5 ppm …
  • —Chemical & Engineering News
  • … there have been environmental concerns about the phenol formaldehyde binders used in most engineered-wood products, which can off-gas.
  • —Max Alexander

First Known Use of off-gas

1974

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