Last name meaning Ferris: This is an Anglicization of the Old Gaelic name O' Fearghusa - a compound of the Gaelic O (meaning grandson or male descendant) and the personal name Fergus, composed of the elements fear - a man and gus - vigour or force...
At other times, a confluence can be the location where two smaller streams or rivers merge to become the source for a new river. This is the case in Pittsburgh, Pennsylvania, where the Monongahela River and Allegheny River merge to create the Ohio River.
Noun. 1. river basin-the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet; flood control in the Missouri basin. catchment area, catchment basin, drainage area, drainage basin, watershed, basin.detention basin-a storage site (such as a small reservoir) that delays the flow of water downstream. retention basin-a storage site similar to a detention basin but the water in storage is permanently obstructed from flowing downstream.atchment area, catchment basin, drainage area, drainage basin, watershed, basin. detention basin-a storage site (such as a small reservoir) that delays the flow of water downstream. retention basin-a storage site similar to a detention basin but the water in storage is permanently obstructed from flowing downstream.