1. 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"
    
2. The 4th letter of the Greek alphabet
   "The river delta is shaped like the Greek letter delta"
    
3. An object shaped like an equilateral triangle
   "The river formed a delta as it emptied into the sea"

Derived forms: deltas

Type of: alluvial deposit, alluvial sediment, alluvion, alluvium, alphabetic character, equiangular triangle, equilateral triangle, formation, geological formation, letter, letter of the alphabet

Part of: Greek alphabet

Encyclopedia: Delta, New York