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1

delta

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noun del·ta \ˈdel-tə\

Simple Definition of delta

  • : 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

Source: Merriam-Webster's Learner's Dictionary

Full Definition of delta

  1. 1 :  the 4th letter of the Greek alphabet — see alphabet table

  2. 2 :  something shaped like a capital Greek delta; especially :  the alluvial deposit at the mouth of a river

  3. 3 :  an increment of a variable —symbol Δ

  4. 4 :  delta wave

deltaic

play \del-ˈtā-ik\ adjective

Origin and Etymology of delta

Middle English deltha, from Greek delta, of Semitic origin; akin to Hebrew dāleth daleth


First Known Use: 13th century


2

delta

adjective del·ta

Definition of delta

  1. :  fourth in position in the structure of an organic molecule from a particular group or atom —symbol δδ



Circa 1929

First Known Use of delta

circa 1929

Other Chemical Engineering Terms


Delta

del·ta

Definition of Delta

  1. —a communications code word for the letter d



1952

First Known Use of delta

1952


Delta

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geographical name Del·ta \ˈdel-tə\

Definition of Delta

  1. municipality Canada in SW British Columbia pop 99,863




DELTA Defined for Kids

delta

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noun del·ta \ˈdel-tə\

Definition of delta for Students

  1. :  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




Medical Dictionary

1

delta

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noun del·ta \ˈdel-tə\

Medical Definition of delta

  1. 1:  the fourth letter of the Greek alphabet—symbol Δ or δ

  2. 2:  any of various things felt to resemble a capital Δ; especially :  the triangular terminus of a pattern in a fingerprint formed either by bifurcation of a ridge or by divergence of two ridges that are parallel beyond it

  3. 3:  delta wave




2

delta

adjective del·ta

Medical Definition of delta

  1. 1:  of or relating to one of four or more closely related chemical substances <the delta chain of fetal hemoglobin> <δ-yohimbine>—used somewhat arbitrarily to specify ordinal relationship or a particular physical form and especially one that is allotropic, isomeric, or stereoisomeric (as in δ-benzene hexachloride)

  2. 2:  fourth in position in the structure of an organic molecule from a particular group or atom; also :  having a structure characterized by such a position <δ-hydroxy acids> <δ-lactones>



Variants of delta

or

δ-


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