HGW
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English[edit]
Noun[edit]
HGW (uncountable)
- (physics, chemistry) Initialism of hyperquenched glassy water.; a form of H2O water ice which is glassy, non-crystalline, that is formed by rapidly cooling liquid water
German[edit]
Interjection[edit]
HGW
- (informal) Initialism of herzlichen Glückwunsch.