microcontinent

As a noun microcontinent

is a landmass which is not small enough to be considered an island but not big enough to be considered a continent.

As a proper noun zealandia is

a nearly submerged continent or microcontinent that sank after breaking away from australia many millions of years ago.

As a noun microcontinent

is a landmass which is not small enough to be considered an island but not big enough to be considered a continent.

As an adjective microcontinental is

of or pertaining to a microcontinent.