mainland mass
Definitions
The principal or largest continuous land area of a continent or country, excluding offshore islands.
A large, contiguous expanse of land that serves as the primary geographical foundation of a region.
Examples
The island was once connected to the mainland mass before rising sea levels separated it.
Geologists are studying the tectonic shifts that shaped the vast mainland mass over millions of years.
Synonyms
continental landmass the continent major land area primary landmass
Antonyms
offshore island isolated archipelago remote islet small island