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.
Double dropping, also known as the dropping system is a brewing method used for the production of ales. During the early 20th century it was the most popular method of clearing trub (inactive yeast and excess, staling and haze-forming protein from the malted barley) during fermentation for English ales.