Definition "mountain" in the Collins English Dictionary & Thesaurus

mountain
n

a a natural upward projection of the earth's surface, higher and steeper than a hill and often having a rocky summit

b (as modifier)
mountain people, mountain scenery

c (in combination)
a mountaintop

2 a huge heap or mass
a mountain of papers

3 anything of great quantity or size

4 a surplus of a commodity, esp. in the European Union
the butter mountain

5 ♦ a mountain to climb (Brit)
informal a serious or considerable difficulty or obstruction to overcome

6 ♦ make a mountain out of a molehill See → molehill → 2
(C13: from Old French montaigne, from Vulgar Latin montanea (unattested) mountainous, from Latin montanus, from mons mountain)

Black Mountain
n the. a mountain range in S Wales, in E Carmarthenshire and W Powys. Highest peak: Carmarthen Van, 802 m (2632 ft.)

cat-o'-mountain
n another name for → catamount

great mountain buttercup
n (N.Z.) See → Mount Cook lily

Green Mountain Boys
pl n the members of the armed bands of Vermont organized in 1770 to oppose New York's territorial claims. Under Ethan Allen they won fame in the War of American Independence

Mountain
n the. an extremist faction during the French Revolution led by Danton and Robespierre
(C18: so called because its members sat in the highest row of seats at the National Convention Hall in 1793)

mountain ash
n

1 any of various trees of the rosaceous genus Sorbus, such as S aucuparia (European mountain ash or rowan), having clusters of small white flowers and bright red berries

2 any of several Australian eucalyptus trees, such as Eucalyptus regnans

mountain avens
n See → avens → 2

mountain bike
a type of sturdy bicycle with at least 16 and up to 21 gears, straight handlebars, and heavy-duty tyres

mountain cat
n any of various wild feline mammals, such as the bobcat, lynx, or puma

mountain chain
n a series of ranges of mountains

mountain devil
n another name for → moloch

mountain everlasting
n another name for → cat's-foot

mountain goat
n

1 short for → Rocky Mountain goat

2 any wild goat inhabiting mountainous regions

mountain laurel
n any of various ericaceous shrubs or trees of the genus Kalmia, esp. K. latifolia of E North America, which has leathery poisonous leaves and clusters of pink or white flowers, (Also called) calico bush

mountain lion
n another name for → puma

mountain range
n a series of adjoining mountains or of lines of mountains of similar origin

mountain sheep
n

1 another name for → bighorn

2 any wild sheep inhabiting mountainous regions

mountain sickness
n nausea, headache, and shortness of breath caused by climbing to high altitudes (usually above 12000 ft.), (Also called) altitude sickness

Mountain Standard Time
n one of the standard times used in North America, seven hours behind Greenwich Mean Time, (Abbrev.) MST

Ngaliema Mountain
n the Congolese name for (Mount) → Stanley

Pyrenean mountain dog
n a large heavily built dog of an ancient breed originally used to protect sheep from wild animals: it has a long thick white coat with a dense ruff

Rocky Mountain goat
n a sure-footed goat antelope, Oreamnos americanus, inhabiting the Rocky Mountains. It has thick white hair and black backward-curving horns

Rocky Mountain spotted fever
n an acute rickettsial disease characterized by high fever, chills, pain in muscles and joints, skin rash, etc. It is caused by the bite of a tick infected with the microorganism Rickettsia rickettsii