Full Definition of PATHOGEN. : a specific causative agent (as a bacterium or virus) of disease. See pathogen defined for English-language learners. See pathogen defined for kids.ull Definition of PATHOGEN. : a specific causative agent (as a bacterium or virus) of disease. See pathogen defined for English-language learners. See pathogen defined for kids.
Doppelbock or double bock is a stronger version of traditional bock that was first brewed in Munich by the Paulaner Friars, a Franciscan order founded by St. Francis of Paula.
Several substyles exist, including maibock (helles bock, heller bock), a paler, more hopped version generally made for consumption at spring festivals; doppelbock (double bock), a stronger and maltier version; and eisbock, a much stronger version made by partially freezing the beer and removing the ice that forms.