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Elementary Dictionary
       

del·ta

delta

 
pronunciation:
del t
part of speech: noun
definition 1: A delta is a large area of sand and soil that has gathered at the mouth of a large river. A delta has the shape of a triangle.
The Nile, the Mississippi, and the Amazon are a few of the rivers that have deltas.
definition 2: "Delta" is the name of the fourth letter of the Greek alphabet. The Greek alphabet is an older alphabet than the one we use in English.
The Greek letter delta, when it is a capital letter, is shaped like a triangle.
derivation: deltaic (adj.)