"Немецкой" is the genitive singular form of the Russian word "немецкий," which means "German." It is often used to describe something related to Germany or the German language, culture, or people. For example, "немецкой культуры" translates to "German culture." In the context of language, "немецкой" can refer to the German language itself, as in "немецкой язык" (German language). The term is commonly used in discussions about Germany, German literature, or German history, highlighting the influence and contributions of the German-speaking world.