Subcontinent

A subcontinent is a large part of a continent. Generally a subcontinent is split from the rest of a continent by something like a mountain range or by tectonic plates.

On Earth, India is considered a subcontinent.

Robert Picard stated that he believed Earth didn't need another subcontinent, while discussing the Atlantis project with his brother. 

A class M planet in orbit of a G-type star was chosen as the new home for the recently awakened Vaadwaur. The planet featured a subcontinent with edible vegetation and an underground water supply. Unfortunately, the region was also subject to windstorms. 

The Central Protectorate of Kelemane's planet was located on a subcontinent on the southern hemisphere of the planet. 

When in orbit of Norcadia, The Doctor chose to spend one afternoon by visiting the Norcadian Museum of Entomology and seeing a "fascinating exhibit of beetle larvae from the equatorial subcontinent." A Dinaali woman who was chief engineer of a water irrigation facility which provided water to half a subcontinent on Dinaal was treated in level blue of Hospital Ship 4-2 in 2377. 

The Uxali Brin, Otrin, Verin and several other surviving Uxali lived in a small subterranean settlement on the northern subcontinent of Uxal. 

The energy barrier that separated and protected the Ventu from the Ledosians was located on the southern subcontinent on Ledos.