Basin- Listing 



Alkind of land tillage in which small dams at intervals 

 of 15 to 25 feet are formed across furrows to form basins 

 for collecting water after precipitation, thus retarding runoff 

 and erosion. 



Basipetdl 



Refers to the development of organs in plants in which 

 the oldest are at the apex, the youngest at the base. cf. 

 Acropetal. 



Basophilous 



Refers to organisms which possess adaptations for life 

 in alkaline soil or in an alkaline medium, e.g. A triplex spp. 



Bathyal Zone 



The deep part of the ocean into which light does not 

 penetrate effectively. 



Bathybic 



Refers to life in the Bathyal zone. 



Bdthypeldgic 



Refers to deep portions of the ocean, not including the 

 bottom. 



Bathysphere 



A structure consisting of a spherical chamber in which 

 man can descend deep into the ocean to make observations. 



Bayou 



A marshy body of water caused by seepage, lack of 

 drainage, or floods, tributary to a stream or lake, in flat 

 country. A term used in the Gulf Coast region and in the 

 lower Mississippi River basin. 



Beach 



The line or zone of demarcation between land and water 

 of lakes, seas, etc. Barrier beach; a ridge of deposits separated 

 from the mainland by an interval of water. 



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