Question: what is the name for the bend on a river where erosion occurs

title: Meander
text: A meander is one of a series of regular sinuous curves , bends , loops , turns , or windings in the channel of a river , stream , or other watercourse . It is produced by a stream or river swinging from side to side as it flows across its floodplain or shifts its channel within a valley . A meander is produced by a stream or river as it erodes the sediments comprising an outer , concave bank ( cut bank ) and deposits this and other sediment downstream on an inner , convex bank which is typically a point bar . The result of sediments being eroded from the outside concave bank and their deposition on an inside convex bank is the formation of a sinuous course as a channel migrates back and forth across the down - valley axis of a floodplain . The zone within which a meandering stream shifts its channel across either its floodplain or valley floor from time to time is known as a meander belt . It typically ranges from 15 to 18 times the width of the channel . Over time , meanders migrate downstream , sometimes in such a short time as to create civil engineering problems for local municipalities attempting to maintain stable roads and bridges . 

Answer: answer: A meander is one of a series of regular sinuous curves, bends, loops, turns or windings in the channel of a river, stream or other watercourse. It erodes the sediments comprising an outer, concave bank (cut bank) and deposits this and other sediment downstream on an inner, convex bank.