the mind > language > linguistics > other schools of linguistics > [noun] > linguistic geography or dialectology > isogloss > specific (4)
a line connecting places in which there is uniformity of vocabulary.
Linguistics. A line in a linguistic atlas connecting places exhibiting identical or nearly identical morphological forms; a morphological isogloss.
A phonetic isogloss; also, a phonetic feature shared by speakers in contiguous areas.
Linguistics. (See quots.)