What is the meaning of Dialectal?

Of or relating to a dialect.

Peculiar to a (nonstandard) variety or lect.

Alternative form of dialeutal

dialectal

dialectal

dialectal

Pre-reform spelling (used until 1943 in Brazil and 1990 in Portugal) of dialetal. Still used in countries where the agreement hasn't come into effect; may occur as a sporadic misspelling.

dialectal

dialectal

Source: wiktionary.org