The Collaborative International Dictionary
Subdialect
Subdialect \Sub*di"a*lect\, n. A subordinate dialect.
Wiktionary
subdialect
n. A subordinate division of a dialect
Wikipedia
Subdialect
A subdialect is a subdivision of dialect. Subdialects can be divided further, ultimately down to idiolects.
Normally subdialects of one dialect are quite close to each other, differing mainly in pronunciation and certain local words.
In some languages there is a special word for such a small variety of language, ex. govor, , or possibly .
Usage examples of "subdialect".
The symbols were in efficient Galactic Two, though he found the specific subdialect technical and hard to interpret.