Noun: effusion i'fyoo-zhun
- Flow under pressure
"The effusion of lava from the volcano created new landforms"
- An unrestrained expression of emotion
"His sudden effusion of anger surprised everyone in the room";
- gush, outburst, blowup [informal], ebullition, blow-up [informal]
Derived forms: effusions
Type of: expression, flood, manifestation, outpouring, reflection, reflexion [Brit]
Encyclopedia: Effusion