delta

/ˈdɛltə/

noun

1
The fourth letter of the modern Greek alphabet Δ, δ.
2
A landform at the mouth of a river where it empties into a body of water.
“Nile Delta”
3
The letter D in the ICAO spelling alphabet, which assigns words to letters of the alphabet.
4
The symbol Δ.
5
A small but noticeable effect. Compare epsilon.
“This will slow the main code path down, but only by delta.”
6
The set of differences between two versions of a file.
“When you update the file, the system will only save the deltas.”
7
A change in a quantity, likely from "d" for "difference".
“ΔV - "delta vee"(change in velocity, used in rocketry and orbital mechanics)”
8
The angle subtended at the center of a circular arc.
9
A type of cargo bike that has one wheel in front and two in back.
10
The closed figure produced by connecting three coils or circuits successively, end for end, especially in a three-phase system.
“delta winding; delta connection; delta current”
11
The rate of change in an option value with respect to the underlying asset's price.
12
A value in delta notation indicating the relative abundances of isotopes.
13
(U.S. Space Force) A military unit, nominally headed by a colonel, equivalent to a USAF operations wing, or an army regiment.

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