AskDefine | Define coast

Dictionary Definition

coast

Noun

1 the shore of a sea or ocean [syn: seashore, seacoast, sea-coast]
2 a slope down which sleds may coast; "when it snowed they made a coast on the golf course"
3 the area within view; "the coast is clear"
4 the act of moving smoothly along a surface while remaining in contact with it; "his slide didn't stop until the bottom of the hill"; "the children lined up for a coast down the snowy slope" [syn: slide, glide] v : move effortlessly; by force of gravity

User Contributed Dictionary

English

Etymology

From and coste, from costa

Pronunciation

  • kōst, /kəʊst/, /k@Ust/
  • Rhymes: -əʊst

Noun

  1. The shoreline or oceanfront.

Translations

shoreline

Derived terms

Verb

  1. To glide along with no added energy.
    When I ran out of gas, fortunately I managed to coast into a nearby gas station.
  2. intransitive nautical To sail along a coast

Anagrams

Extensive Definition

The coast is defined as the part of the land adjoining or near the ocean. A coastline is properly a line on a map indicating the disposition of a coast, but the word is often used to refer to the coast itself. The adjective coastal describes something as being on, near to, or associated with a coast.
Coast is a specific term, and is applied to that part of an island or continent that borders an ocean or its saltwater tributaries. A pelagic coast refers to a coast which fronts the open ocean, as opposed to a more sheltered coast in a gulf or bay. A shore on the other hand, can refer to parts of the land which adjoin any large body of water, including oceans (sea shore) and lakes (lake shore). Similarly, the somewhat related term bank refers to the land alongside or sloping down to a river (river bank) or of a body of water smaller than a lake. Bank is also used in some parts of the world to refer to an artificial ridge of earth intended to retain the water of a river or pond. In other places this may be called a levee.
While many scientific experts might agree on a common definition of the term "coast", the delineation of the inland extents of a coast differ according to jurisdiction, with many scientific and government authorities in various countries differing for economic and social policy reasons. This is usually because defining lands as part of a coast may be seen to have environmental implications which would prevent development or attach regulations to their use.

Environmental importance

The coast and its adjacent areas on and off shore is an important part of a local ecosystem as the mixture of fresh water and salt water in estuaries provides many nutrients for marine life. Salt marshes and beaches also support a diversity of plants, animals, and insects crucial to the food chain.
Like the ocean which shapes them, coasts are a dynamic environment with constant change. The earth's natural processes, particularly sea level rise, waves and various weather phenomena, have resulted in the erosion, accretion and reshaping of coasts as well as flooding and creation of continental shelves and drowned river valleys (rias).

Human impacts

further Marine debris Coasts also face many environmental challenges relating to human-induced impacts. The human influence on climate change is thought to be a contributing factor of an accelerated trend in sea level rise which threatens coastal habitat as natural systems struggle to adapt faster. Human development of coastal land, particularly for recreational or industrial uses are similarly threatened by sea level rise, but also contribute to aesthetic problems of land use and reduced natural coastal habitat.
Pollution is an ongoing concern along coasts with garbage and industrial debris littering beaches and sometimes entire coasts, requiring government agencies to make frequent use of beach cleaners and other volunteer cleanup efforts. The transportation of petroleum in tankers is a major hazard both for the open ocean and along coasts, particularly when large oil spills occur. Another major hazard for coastal marine life is the large number of small oil spills created by large and small vessels powered by petroleum which flush bilge water directly into the ocean.
Both the terms coast and coastal are often used to describe a geographic location or region. For example, New Zealand's West Coast, or the East and West Coasts of the United States. A large part of the global population inhabits areas near a coast, partly to take advantage of marine resources such as fish, but more importantly to participate in seaborne trade with other nations. Many of the world's major cities that have developed in recent centuries were built on or near good harbours and have large port facilities to take advantage of marine transportation. Jurisdictions which are landlocked and have no coast are often at an economic disadvantage with overseas trade being more difficult; sometimes being forced to go to extravagant measures such as building canals to permit ocean-going vessels to travel inland.
Coasts, especially those with beaches and warm water are also an important draw for tourists. In many island nations such as those of the Mediterranean, South Pacific and Caribbean, tourism by those who come to enjoy the coast is central to the economy. Coasts are popular destinations because of recreational activities such as swimming, fishing, surfing, boating, and sunbathing. Growth management can be a challenge for coastal local authorities who often struggle to provide the infrastructure required by new residents seeking seachange lifestyles.
Many tourists and residents also enjoy the salt air by the sea coast which some consider to have health benefits. Coastal weather is heavily influenced by the ocean and while this can sometimes result in dangerous storms such as Nor'easters and hurricanes, the coastal climate is often cooler and more temperate than corresponding inland areas. Consequently tourists from areas experiencing extremely warm and humid weather seek coastal areas for these reasons.
The coast is often a crucial defensive frontier, both for warding off military invaders but also smugglers and illegal migrants. Coastal defenses have thus long been erected in many nations. Most coastal countries also have a navy and some form of coast guard.

Types of coast

An emergent coastline is a coastline which has experienced a fall in sea level, because of either a global sea level change, or local uplift. Emergent coastlines are identifiable by the coastal landforms, which are above the high tide mark, such as raised beaches. Alternatively, a submergent coastline is a coastline which has experienced a rise in sea level, due to a global sea level change, local subsidence, or isostatic rebound. Submergent coastlines are identifiable by their submerged, or "drowned" landforms, such as rias (drowned valleys) and fjords.
A concordant coastline is a coastline where bands of different rock types run parallel to the shore. These rock types are usually of alternating resistance, so the coastline forms distinctive landforms, such as coves. A discordant coastline is a type of coastline formed when rock types of alternating resistance run perpendicular to the shore. Discordant coastlines feature distinctive landforms because the rocks are eroded by ocean waves. The less resistant rocks erode faster, creating inlets or bays; the more resistant rocks erode more slowly, remaining as headlands or outcroppings.

Coastal landforms and features

Rivers on the coastline

Coastal features formed by another feature

Wildlife

Animals

Animals living along the coast vary enormously, some live along coasts to nest like puffins, sea turtles and rockhopper penguins. Sea snails and various kinds of barnacles live on the coast and scavenge on food deposited by the sea. Most coastal animals are used to humans in developed areas, such as dolphins and seagulls who eat food thrown for them by tourists. Since the coastal areas are all part of the littoral zone, there is a profusion of marine life found just off-coast.
There are many kinds of seabirds on the coast. Pelicans and cormorants join up with terns and oystercatchers to forage for fish and shellfish on the coast.

Plants

Coastal areas are famous for their kelp beds. Kelp is a fast growing seaweed that grows up to a metre a day. Corals and anemones are true animals, but live a similar lifestyle as plants do.

External links

coast in Afrikaans: Kuslyn
coast in Aragonese: Costa
coast in Asturian: Costa
coast in Aymara: Lamara junt'u tuqi suyu
coast in Belarusian (Tarashkevitsa): Узьбярэжжа
coast in Breton: Aod
coast in Bulgarian: Бряг
coast in Catalan: Costa
coast in Czech: Pobřeží
coast in Danish: Kyst
coast in German: Küste
coast in Estonian: Rannik
coast in Modern Greek (1453-): Ακτή
coast in Spanish: Costa
coast in French: Côte (géographie)
coast in Galician: Costa (xeografía)
coast in Korean: 연안
coast in Croatian: Obala
coast in Icelandic: Strönd
coast in Italian: Costa
coast in Latvian: Piekraste
coast in Dutch: Kust
coast in Japanese: 海岸
coast in Norwegian: Kyst
coast in Norwegian Nynorsk: Kyst
coast in Polish: Wybrzeże
coast in Portuguese: Costa (geografia)
coast in Russian: Побережье
coast in Simple English: Coast
coast in Slovak: Pobrežie
coast in Slovenian: Obala
coast in Finnish: Rannikko
coast in Swedish: Kust
coast in Cherokee: ᎠᎹᏳᎸᏗ
coast in Yiddish: ברעג ים
coast in Chinese: 海岸

Synonyms, Antonyms and Related Words

abide, avalanche, bank, be a sideliner, be effortless, be painless, be still, beach, beam, berm, board, boat, border, bordure, brim, brink, broadside, brow, canoe, carry sail, cheek, chop, circumnavigate, coastland, coastline, cross, cruise, delay, do nothing, drift, edge, embankment, featheredge, flange, flank, flit, flow, fly, foreshore, frame, freeze, fringe, give no trouble, glide, glissade, glissando, go by ship, go easily, go like clockwork, go on shipboard, go to sea, hand, handedness, hang fire, haunch, hem, hibernate, hip, hug the shore, ice-skate, idle, ironbound coast, jowl, keep quiet, labellum, labium, labrum, landslide, landslip, laterality, ledge, lido, lie dormant, lie still, limb, limbus, lip, list, littoral, make a passage, many-sidedness, marge, margin, mark time, motorboat, multilaterality, navigate, not breathe, not budge, not stir, plage, planking, playa, ply, present no difficulties, profile, quarter, ragged edge, range the coast, remain, remain motionless, repose, rest, rim, riverside, riviera, rockbound coast, roll, roller-skate, row, run, run smoothly, sail, sail coast-wise, sail round, sail the sea, sands, scull, sea margin, seabank, seabeach, seaboard, seacliff, seacoast, seafare, seashore, seaside, selvage, shingle, shore, shoreline, side, sideline, sideslip, siding, sit back, sit it out, skate, skateboard, ski, skid, skim, skirt, skirt the shore, sled, sleigh, slidder, slide, slide down, slip, slippage, slither, snowslide, snowslip, stagnate, stand, stand fast, stand firm, stand still, stay, stay in soundings, stay put, steam, steamboat, stick, stick fast, strand, submerged coast, subsidence, sweep, take a voyage, take it easy, tarry, temple, tidewater, toboggan, traverse, tread water, unilaterality, vegetate, verge, voyage, wait and see, watch and wait, waterfront, waterside, work well, yacht
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