(mathematics) The condition of being interreducible

plural of bloody nose

(linguistics) In German dialectology, an isogloss separating the Central German dialects to the north (which have a stop in words like Appel (“apple”)) from the Upper German dialects to the south (...

An English surname originating as a patronymic derived from John / A township in Appanoose County, Iowa, United States, named for the many early settlers named John.