First Known Use: 13th century
Dictionary
1delta
noun del·ta \ˈdel-tə\
: the fourth letter of the Greek alphabet
: a piece of land shaped like a triangle that is formed when a river splits into smaller rivers before it flows into an ocean
: an area of low land along the Mississippi River that is mainly in the state of Mississippi
Full Definition of DELTA
1
: the 4th letter of the Greek alphabet — see alphabet table
2
: something shaped like a capital Greek delta; especially : the alluvial deposit at the mouth of a river
3
: an increment of a variable —symbol Δ
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Origin of DELTA
Middle English deltha, from Greek delta, of Semitic origin; akin to Hebrew dāleth daleth
Other Geology Terms
2delta
adjective
Definition of DELTA
: fourth in position in the structure of an organic molecule from a particular group or atom —symbol δδ
First Known Use of DELTA
circa 1929
Delta
Definition of DELTA
—a communications code word for the letter d
First Known Use of DELTA
1952
Delta
geographical name Del·ta \ˈdel-tə\
Definition of DELTA
municipality Canada in SW British Columbia pop 99,863
DELTAIC Defined for Kids
delta
noun del·ta \ˈdel-tə\
Definition of DELTA for Kids
: a piece of land in the shape of a triangle or fan made by deposits of mud and sand at the mouth of a river
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