Wiktionary
sublanguage
n. (context computing linguistics English) A subset of a language
Usage examples of "sublanguage".
A number of mutants had problems with their extremities, so this sublanguage was useful.
Whereas there was a main common tongue on Gor, with apparently several related dialects or sublanguages, some of the Gorean languages bore in sound little resemblance to anything I had heard before, at least as languages.