outgassing

See also: out-gassing

English

outgassing

outgassing (countable and uncountable, plural outgassings)

The slow release of gas from a solid or liquid; especially the release of gases into the atmosphere of a planet
- 2012, Caspar Henderson, The Book of Barely Imagined Beings, page 233:
  A sudden out-gassing of methane from the seabed sends up a giant bubble that lowers water density at the sea surface so much that a ship is no longer buoyant and sinks like a stone down a mineshaft.
- 2010, BioWare, Mass Effect 2 (Science Fiction), Redwood City: Electronic Arts, OCLC 865290061, PC, scene: Zeona, Elysta System:
  Zeona has a thin atmosphere of sulfur dioxide and trioxide, created by volcanic outgassing. There are traces of water vapor in the atmosphere, but over the last five centuries of observation particle counts have decreased 4%.

slow release of gas