isogloss
[ ahy-suh-glos, -glaws ]
/ ˈaɪ səˌglɒs, -ˌglɔs /
noun
(in the study of the geographical distribution of dialects) a line on a map marking the limits of an area within which a feature of speech occurs, as the use of a particular word or pronunciation.
OTHER WORDS FROM isogloss
i·so·glos·sal, adjectiveWords nearby isogloss
isogeneic graft,
isogeneic homograft,
isogenesis,
isogenous,
isogeotherm,
isogloss,
isogon,
isogonal,
isogonal line,
isogonic,
isogonic line
British Dictionary definitions for isogloss
isogloss
/ (ˈaɪsəʊˌɡlɒs) /
noun
a line drawn on a map around the area in which a linguistic feature is to be found, such as a particular pronunciation of a given word