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Also available:
World English Dictionary
Dictionnaire Français
base level
base lev·el
(
plural
base lev·els
)
noun
Definition:
lowest level of eroded land:
the lowest level to which moving water can erode a land surface such as the bed of a stream, lake, or sea
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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