http://www.eoearth.org/article/Drainage_basin
Dentritic drainage patterns are like tree branches and repesent the most common drainage pattern.
http://www.nasrda.org/docs/ologun.pdf
The dentritic drainage pattern of the area extracted from the image. and existing topographic map can give a great deal of information ...

The term dendritic comes from the Greek word "dendron", meaning tree, due to the resemblance of the system to a tree.
I haven't heard dentrític before. It certainly refers to a dendritic system

En español, es dendrítico


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Note added at 4 hrs (2008-05-07 07:52:48 GMT)
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http://en.wikipedia.org/wiki/River_system