Delta meaning

dĕltə
) A change (increase or decrease) in the value of a variable.
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The fourth letter of the Greek alphabet.
noun
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Being in the fourth position relative to a designated carbon atom in an organic molecule at which an atom or a group may be substituted.
adjective
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The fourth letter of the modern Greek alphabet Δ, δ.
noun
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A landform at the mouth of a river where it empties into a body of water.
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(mathematics) The symbol Δ.
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A usually triangular mass of sediment, especially silt and sand, deposited at the mouth of a river. Deltas form when a river flows into a body of standing water, such as a sea or lake, and deposits large quantities of sediment. They are usually crossed by numerous streams and channels and have exposed as well as submerged areas.
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An object shaped like a triangle.
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The definition of a delta is a triangle-shaped deposit of sand, clay or silt at the mouth of a river.

An example of a delta is where the Nile River drains into the Mediterranean Sea.

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Something in the shape of a delta (Δ); specif., a tract of flat land, usually triangular, formed by deposits of soil and sand at the mouth of a large river.
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(surveying) The angle subtended at the center of a circular arc.
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Diploma in English Language Teaching to Adults, an advanced qualification to teach English, higher than the CELTA, accredited by the University of Cambridge.
acronym
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A finite increment in a variable.
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Referring to the fourth of a group of isomers, or molecules of similar origin or properties, determined arbitrarily by those who discover or classify them. Used in combination.
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The fourth letter of the Greek alphabet (Δ, δ)
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An incremental value between one number and another.
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The measurement of how much an option’s premium changes when there is a unit change in the underlying price of the financial instrument, which may be a futures contract, a stock, or some other financial instrument. Another way to interpret delta is as an indication of whether an option will still be in the money, or have value, at its expiration.
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The letter D in the ICAO spelling alphabet, which assigns words to letters of the alphabet.
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(computing, informal) A small but noticeable effect, compare with epsilon.

This will slow the main code path down, but only by delta.

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(computing) The set of differences between two versions of a file.

When you update the file, the system will only save the deltas.

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Delta is defined as the fourth letter of the Greek alphabet. It is shown in capital form with the symbol of an isosceles triangle (Δ) and in lower-case form with a circle with a tail on the top (δ).

An example of delta being used is the use of the capital delta symbol (Δ) in math equations to show a change of any quantity. For example: Δ = b² - 4ac.

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An area of the south-central United States extending on either side of the Mississippi River from Memphis, Tennessee, to Vicksburg, Mississippi. An important cotton-producing region, it is noted for its folk culture, especially as the home of some of the earliest blues music.
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Of, in, or from the Delta (see phrase below)

Delta blues.

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See alpha.
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the Delta
  • Low-lying region in NW Miss., extending eastward from the Mississippi River.
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Idioms and Phrasal Verbs

the Delta

Origin of delta

  • Middle English from Latin from Greek of Phoenician origin dl in Semitic roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Ancient Greek δέλτα (delta).

    From Wiktionary