What is geolinguistics? Here are some definitions.
Noun
An academic discipline involving the analysis and implications of the geographical location, distribution and structure of language varieties within a temporal framework, either in isolation or in contact and/or conflict with one another.
Examples
The introductory chapter is devoted to a brief theoretical explanation of what geolinguistics as an academic discipline entails.
He has written extensively on language and is president of the American Society of Geolinguistics.