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The fourth letter of the modern Greek alphabet Δ, δ.
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A landform at the mouth of a river where it empties into a body of water.
example
Nile Delta
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The letter D in the ICAO spelling alphabet, which assigns words to letters of the alphabet.
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The symbol Δ.
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A small but noticeable effect. Compare epsilon.
example
This will slow the main code path down, but only by delta.
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The set of differences between two versions of a file.
example
When you update the file, the system will only save the deltas.
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A change in a quantity, likely from "d" for "difference".
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ΔV - "delta vee"(change in velocity, used in rocketry and orbital mechanics)
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The angle subtended at the center of a circular arc.
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A type of cargo bike that has one wheel in front and two in back.
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The closed figure produced by connecting three coils or circuits successively, end for end, especially in a three-phase system.
example
delta winding; delta connection; delta current
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The rate of change in an option value with respect to the underlying asset's price.
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A value in delta notation indicating the relative abundances of isotopes.
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(U.S. Space Force) A military unit, nominally headed by a colonel, equivalent to a USAF operations wing, or an army regiment.