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From Nordan Symposia
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[[File:lighterstill.jpg]][[File:StreamByFallsHg.jpg|right|frame]]
==Etymology==
[http://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English] streme, from [http://nordan.daynal.org/wiki/index.php?title=English#ca._600-1100.09THE_OLD_ENGLISH.2C_OR_ANGLO-SAXON_PERIOD Old English] strēam; akin to Old High German stroum stream, [[Greek]] rhein to [[flow]]
*Date: before [http://www.wikipedia.org/wiki/12th_Century 12th century]
==Definitions==
*1 : a [[body]] of running [[water]] (as a river or brook) [[flowing]] on the [[earth]]; also : any [[body]] of flowing [[fluid]] (as [[water]] or [[gas]])
*2 a : a steady [[succession]] (as of [[words]] or [[events]]) <kept up an endless stream of chatter>
:b : a constantly renewed or steady supply <a stream of revenue>
:c : a [[continuous]] moving [[procession]] <a stream of traffic>
*3 : an unbroken [[flow]] (as of [[gas]] or [[particles]] of [[matter]])
*4 : a [[ray]] of [[light]]
*5 a : a prevailing [[attitude]] or [[group]] <has always run against the stream of current [[fashion]]>
:b : a [[dominant]] [[influence]] or line of [[development]] <the [[influence]] of two streams of [[inheritance]]: [[genetic]] and [[cultural]] — P. B. Baltes>
==Description==
A '''stream''' is a [[body]] of [[water]] with a current, confined within a bed and stream banks. Depending on its locale or certain characteristics, a stream may be referred to as a branch, brook, beck, burn, creek, kill, lick, rill, river syke, bayou, rivulet, streamage, wash, or run. In some countries or [[communities]] a stream may be defined by its size. In the United States a stream is [[classified]] as a watercourse less than 60 feet (18 metres) wide.
Streams are important as conduits in the [[water]] [[cycle]], instruments in groundwater recharge, and they serve as corridors for fish and wildlife [[migration]]. The [[biological]] [[habitat]] in the [[immediate]] vicinity of a stream is called a [http://en.wikipedia.org/wiki/Riparian_zone riparian zone]. Given the [[status]] of the ongoing [http://en.wikipedia.org/wiki/Holocene_extinction Holocene extinction], streams play an important corridor role in [[connecting]] [http://en.wikipedia.org/wiki/Habitat_fragmentation fragmented habitats] and thus in conserving [[biodiversity]]. The [[study]] of streams and waterways in general is known as surface [http://en.wikipedia.org/wiki/Hydrology hydrology] and is a core [[element]] of [http://en.wikipedia.org/wiki/Environmental_geography environmental geography].[http://en.wikipedia.org/wiki/Stream]
[[Category: Biology]]
[[Category: Ecology]]
==Etymology==
[http://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English] streme, from [http://nordan.daynal.org/wiki/index.php?title=English#ca._600-1100.09THE_OLD_ENGLISH.2C_OR_ANGLO-SAXON_PERIOD Old English] strēam; akin to Old High German stroum stream, [[Greek]] rhein to [[flow]]
*Date: before [http://www.wikipedia.org/wiki/12th_Century 12th century]
==Definitions==
*1 : a [[body]] of running [[water]] (as a river or brook) [[flowing]] on the [[earth]]; also : any [[body]] of flowing [[fluid]] (as [[water]] or [[gas]])
*2 a : a steady [[succession]] (as of [[words]] or [[events]]) <kept up an endless stream of chatter>
:b : a constantly renewed or steady supply <a stream of revenue>
:c : a [[continuous]] moving [[procession]] <a stream of traffic>
*3 : an unbroken [[flow]] (as of [[gas]] or [[particles]] of [[matter]])
*4 : a [[ray]] of [[light]]
*5 a : a prevailing [[attitude]] or [[group]] <has always run against the stream of current [[fashion]]>
:b : a [[dominant]] [[influence]] or line of [[development]] <the [[influence]] of two streams of [[inheritance]]: [[genetic]] and [[cultural]] — P. B. Baltes>
==Description==
A '''stream''' is a [[body]] of [[water]] with a current, confined within a bed and stream banks. Depending on its locale or certain characteristics, a stream may be referred to as a branch, brook, beck, burn, creek, kill, lick, rill, river syke, bayou, rivulet, streamage, wash, or run. In some countries or [[communities]] a stream may be defined by its size. In the United States a stream is [[classified]] as a watercourse less than 60 feet (18 metres) wide.
Streams are important as conduits in the [[water]] [[cycle]], instruments in groundwater recharge, and they serve as corridors for fish and wildlife [[migration]]. The [[biological]] [[habitat]] in the [[immediate]] vicinity of a stream is called a [http://en.wikipedia.org/wiki/Riparian_zone riparian zone]. Given the [[status]] of the ongoing [http://en.wikipedia.org/wiki/Holocene_extinction Holocene extinction], streams play an important corridor role in [[connecting]] [http://en.wikipedia.org/wiki/Habitat_fragmentation fragmented habitats] and thus in conserving [[biodiversity]]. The [[study]] of streams and waterways in general is known as surface [http://en.wikipedia.org/wiki/Hydrology hydrology] and is a core [[element]] of [http://en.wikipedia.org/wiki/Environmental_geography environmental geography].[http://en.wikipedia.org/wiki/Stream]
[[Category: Biology]]
[[Category: Ecology]]
