Δ
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Translingual
Symbol
Δ
- (mathematics, sciences) Alternative form of ∆: change in a variable
- (chemistry) Used on the reaction arrow in a chemical equation, to show that energy in the form of heat is added to the reaction
- (mathematics, set theory) Used to represent the symmetric difference (also known as the disjunctive union) of two sets
- (genetics) Used before a gene name as a modifier to denote a deletion mutation of that gene.
- (music) Used after a pitch class to denote a major seventh chord with a note of said pitch as its root.
Usage notes
(mathematics): Unicode establishes a distinct symbol (∆) for particular use in mathematics, but Δ is often substituted for convenience.
Coordinate terms
English
Noun
Δ
- (law) Abbreviation of defendant.
Albanian
Pronunciation
Letter
Δ (Dh) (upper case Δ, lower case δ)
- The 6th letter of the Arvanitic Albanian Greek-script alphabet.
See also
- (Greek script letters) Α α, Β β, Ƃ ƅ, Γ γ, Γj γj, Δ δ, D d, Ε ε, Ε̱ ε̱, Ζ ζ, Ζ̇ ζ̇, Θ θ, Ι ι, J j, Κ κ, Κ̇ κ̇, Λ λ, ΛΛ λλ, Λ̇ λ̇, Μ μ, Ν ν, Ν̇ ν̇, Ο ο, Π π, Ρ ρ, Ρ̇ ρ̇, Σ σ, Σ̈ σ̈, Τ τ, Ȣ ȣ, Υ υ, Φ φ, Χ χ, Χ̇ χ̇, ΤΣ τσ, ΤΣ̈ τσ̈, DΣ dσ, DΣ̈ dσ̈
- (Latin-script letters) shkronjë; A a, B b, C c, Ç ç, D d, Dh dh, E e, Ë ë, F f, G g, Gj gj, H h, I i, J j, K k, L l, Ll ll, M m, N n, Nj nj, O o, P p, Q q, R r, Rr rr, S s, Sh sh, T t, Th th, U u, V v, X x, Xh xh, Y y, Z z, Zh zh
Ancient Greek
Etymology
From the Phoenician letter 𐤃 (d, “dālet”).
Letter
Δ • (D) (uppercase, lowercase δ)
- The letter delta (δέλτα (délta)), the fourth letter of the ancient Greek alphabet.
Derived terms
See also
- (Greek-script letters) Α α, Β β, Γ γ, Δ δ, Ε ε, Ζ ζ, Η η, Θ θ, Ι ι, Κ κ, Λ λ, Μ μ, Ν ν, Ξ ξ, Ο ο, Π π, Ρ ρ, Σ σ ς, Τ τ, Υ υ, Φ φ, Χ χ, Ψ ψ, Ω ω
- (non-Classical letters) Ϝ ϝ, Ͷ ͷ, Ͱ ͱ, Ϻ ϻ, Ϙ ϙ, Ͳ ͳ
- (punctuation) · ;
- (diacritics) ᾿ ῾ ◌́ ◌̀ ῀ ¨
Cypriot Arabic
Pronunciation
Letter
Δ (lower case δ)
- A letter of the Cypriot Arabic alphabet, written in the Latin script.
Greek
Adjective
Δ • (D)
- Abbreviation of δυτικός (dytikós, “west, westerly”).
Noun
Δ • (D)
- Abbreviation of δύση (dýsi, “west”).
See also
Letter
Δ • (D) (uppercase, lowercase δ)
- The upper case delta (δέλτα), the fourth letter of the modern Greek alphabet, representing a voiced interdental fricative (/ð/).
Coordinate terms
- (Greek-script letters) Α α, Β β, Γ γ, Δ δ, Ε ε, Ζ ζ, Η η, Θ θ, Ι ι, Κ κ, Λ λ, Μ μ, Ν ν, Ξ ξ, Ο ο, Π π, Ρ ρ, Σ σ ς, Τ τ, Υ υ, Φ φ, Χ χ, Ψ ψ, Ω ω
- (non-Classical letters) Ϝ ϝ, Ͷ ͷ, Ͱ ͱ, Ϻ ϻ, Ϙ ϙ, Ͳ ͳ
- (punctuation) · ;
- (diacritics) ᾿ ῾ ◌́ ◌̀ ῀ ¨
Descendants
- (Glagolitic): Ⰴ, ⰴ
See also
Wakhi
Pronunciation
Letter
Δ (lower case δ)
- A letter of the Wakhi alphabet, written in the Latin script.