A type of strong lager chilled to sub-zero temperatures after fermentation so that ice crystals may be strained off, thereby concentrating the flavour and alcohol content.
Origin
1970s. From German Eisbock from Eis + Bock. Compare Eiswein.
Definition of Eisbock in US English:
Eisbock
nounˈʌɪsbɒk
A type of strong lager chilled to sub-zero temperatures after fermentation so that ice crystals may be strained off, thereby concentrating the flavour and alcohol content.
Origin
1970s. From German Eisbock from Eis + Bock. Compare Eiswein.