structural:reformatting, information:classification
Geography

The term Mayotte (or Maore) may refer to all of the department's islands, of which the largest is known as Maore (French: Grande-Terre) and includes Maore's surrounding islands, most notably Pamanzi (French: Petite-Terre), or only to the largest island. The name is believed to come from Mawuti, contraction of the Arabic جزيرة الموت Jazīrat al-Mawt – meaning "island of death" (maybe due to the dangerous reefs circling the island) and corrupted to Mayotta in Portuguese, later turned into French. However, the local name is Mahore, and the Arabic etymology is doubtful.

The main island, Grande-Terre (or Maore), geologically the oldest of the Comoro Islands, is 39 kilometres (24 mi) long and 22 kilometres (14 mi) wide, and its highest point is Mount Benara, at 660 metres (2,165 ft) above sea level. Because of the volcanic rock, the soil is relatively rich in some areas. A coral reef encircling much of the island ensures protection for ships and a habitat for fish. Dzaoudzi was the capital of Mayotte (and earlier the capital of all the colonial Comoros) until 1977, when the capital was relocated to Mamoudzou on the main island of Grande-Terre. It is situated on Petite-Terre (or Pamanzi), which at 10 square kilometres (4 sq mi) is the largest of several islets adjacent to Maore. The area of the lagoon behind the reef is approximately 1,500 square kilometres (580 sq mi), reaching a maximum depth of about 80m. It is described as "the largest barrier-reef-lagoon complex within the southwestern Indian Ocean".