word | | Terrain |
| Mid | Atlantic Ocean | ... in the northern Atlantic, counterclockwise warm-water gyre in the southern Atlantic; the ocean floor is dominated by the Mid-Atlantic Ridge, a rugged north-south centerline for the entire Atlantic basin |
| Mid | Indian Ocean | ... the northeast monsoon and northeast-to-southwest winds and currents; ocean floor is dominated by the Mid-Indian Ocean Ridge and subdivided by the Southeast Indian Ocean Ridge, Southwest Indian Ocean Ridge ... |
| Mid | Saint Helena | the islands of this group result from volcanic activity associated with the Atlantic Mid-Ocean Ridge Saint Helena: rugged, volcanic; small scattered plateaus and plains Ascension: surface covered by lava flows and ... |
| minimum | Southern Ocean | ... to 800 m (the global mean is 133 m); the Antarctic icepack grows from an average minimum of 2.6 million sq km in March to about 18.8 million sq km in September ... |
| mixed | Slovenia | a short coastal strip on the Adriatic, an alpine mountain region adjacent to Italy and Austria, mixed mountains and valleys with numerous rivers to the east |
| mixture | French Polynesia | mixture of rugged high islands and low islands with reefs |
| moderately | Swaziland | mostly mountains and hills; some moderately sloping plains |
| Moldavia | Romania | central Transylvanian Basin is separated from the Plain of Moldavia on the east by the Carpathian Mountains and separated from the Walachian Plain on the south by the Transylvanian Alps |
| monotonous | Central African Republic | vast, flat to rolling, monotonous plateau; scattered hills in northeast and southwest |
| monsoon | Indian Ocean | ... Ocean; low atmospheric pressure over southwest Asia from hot, rising, summer air results in the southwest monsoon and southwest-to-northeast winds and currents, while high pressure over northern Asia from cold ... |
| Moravia | Czech Republic | Bohemia in the west consists of rolling plains, hills, and plateaus surrounded by low mountains; Moravia in the east consists of very hilly country |
| Moselle | Luxembourg | mostly gently rolling uplands with broad, shallow valleys; uplands to slightly mountainous in the north; steep slope down to Moselle flood plain in the southeast |
| mountain | Antarctica | ... thick continental ice sheet and 2% barren rock, with average elevations between 2,000 and 4,000 meters; mountain ranges up to nearly 5,000 meters; ice-free coastal areas include parts of southern Victoria ... |
| mountain | Ethiopia | high plateau with central mountain range divided by Great Rift Valley |
| mountain | Iceland | mostly plateau interspersed with mountain peaks, icefields; coast deeply indented by bays and fiords |
| mountain | Kosovo | flat fluvial basin with an elevation of 400-700 m above sea level surrounded by several high mountain ranges with elevations of 2,000 to 2,500 m |
| mountain | Slovenia | a short coastal strip on the Adriatic, an alpine mountain region adjacent to Italy and Austria, mixed mountains and valleys with numerous rivers to the east |
| mountain | Turkey | high central plateau (Anatolia); narrow coastal plain; several mountain ranges |
| mountainous | Bhutan | mostly mountainous with some fertile valleys and savanna |
| mountainous | Burundi | hilly and mountainous, dropping to a plateau in east, some plains |
| mountainous | European Union | fairly flat along the Baltic and Atlantic coast; mountainous in the central and southern areas |
| mountainous | Falkland Islands (Islas Malvinas) | rocky, hilly, mountainous with some boggy, undulating plains |
| mountainous | France | metropolitan France: mostly flat plains or gently rolling hills in north and west; remainder is mountainous, especially Pyrenees in south, Alps in east French Guiana: low-lying coastal plains rising to hills ... |
| mountainous | Georgia | largely mountainous with Great Caucasus Mountains in the north and Lesser Caucasus Mountains in the south; Kolkhet'is Dablobi (Kolkhida Lowland) opens to the Black Sea in the west; Mtkvari River Basin ... |
| mountainous | Greenland | flat to gradually sloping icecap covers all but a narrow, mountainous, barren, rocky coast |