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.
A doubletree is a bar used to harness two horses to a carriage or other vehicle. In the case of a carriage, the double tree is usually fastened to the pole with a center pivot. Singletrees are fastened to each end of the doubletree, again with a pivot connection.