Ausbreitens
Ausbreitens is not a widely used standalone term in standard German. The typical nominal forms for the act of spreading are Ausbreitung and Ausbreiten; Ausbreitens appears primarily as the genitive form des Ausbreitens of the nominalized infinitive Ausbreiten and tends to occur in formal or scholarly prose. In such contexts it can function as part of a phrase like des Ausbreitens eines Phänomens, but it is not generally treated as a separate technical term.
In usage and nuance, Ausbreitens denotes the act or result of spreading in a grammatical sense, while
Applications and examples appear across disciplines where spreading is relevant. In physics, one might refer to