a river delta definition
n. 1 (Also called) Red River of the South a river in the S central U.S., flowing east from N Texas through Arkansas into the Mississippi in Louisiana. Length: 1639 km (1018 miles). 2 a river in the northern U.S., flowing north as the border between North Dakota and Minnesota and into Lake Winnipeg, Canada. Noun. 1. delta-a low triangular area of alluvial deposits where a river divides before entering a larger body of water; the Mississippi River delta; the Nile delta. alluvial deposit, alluvial sediment, alluvium, alluvion-clay or silt or gravel carried by rushing streams and deposited where the stream slows down. From north to south, the delta is approximately 160 kilometres (99 mi) in length. From west-to-east, it covers some 240 kilometres (150 mi) of coastline. The delta is sometimes divided into sections, with the Nile dividing into two main distributaries, the Damietta and the Rosetta, flowing into the Mediterranean at port cities with the same name. a roughly triangular area of land formed at the mouth of a river which reaches the sea in two or more branches. the delta of the Nile. The Nile is considered to be an arcuate delta (arc-shaped), as it resembles a triangle or lotus flower when seen from above. The outer edges of the delta are eroding, and some coastal lagoons have seen increasing salinity levels as their connection to the Mediterranean Sea increases. n a river in the northwestern U.S., rising in NW Wyoming and flowing west through Idaho, turning north as part of the border between Idaho and Oregon, and flowing west to the Columbia River near Pasco, Washington. It is one of the world's largest river deltas—from Alexandria in the west to Port Said in the east, it covers 240 kilometres (150 mi) of Mediterranean coastline—and is a rich agricultural region. From north to south the delta is approximately 160 kilometres (99 mi) in length. Lower course features. In the lower course, the river has a high volume and a large discharge. The river channel is now deep and wide and the landscape around it is flat. However, as a river reaches the end of its journey, energy levels are low and deposition takes place. Saint Croix River. n usually abbreviated to, St Croix River a river on the border between the northeast U.S. and SE Canada, flowing from the Chiputneticook Lakes to Passamaquoddy Bay, forming the border between Maine, U.S., and New Brunswick, Canada. delta-the 4th letter of the Greek alphabet. Greek alphabet-the alphabet used by ancient Greeks. alphabetic character, letter of the alphabet, letter-the conventional characters of the alphabet used to represent speech; his grandmother taught him his letters. Translations.
A low triangular area of alluvial deposits where a river divides before entering a larger body of water.