Outgassing

Meaning

The release of gases trapped within a solid body, especially the emission of volatile substances from a planet interior through volcanic activity

Origin / Etymology

English out + gassing; from gas (coined by Jan Baptist van Helmont, 17th century)

Synonyms

Degassing Volatile release Emanation

Antonyms

Absorption Sequestration

Example Sentence

"The endogenous theory proposes that Earth water originated from within the planet and was released to the surface through volcanic outgassing over billions of years."

🎯 UPSC Usage

Use in GS-1 (Geography) answers on origin of Earth hydrosphere, volcanic activity, atmospheric evolution, and deep water cycle. Shows scientific depth beyond textbook geography.

Relevant Subjects