Δ

See also: δ; ,δ; δ'; △; ∆; ㅿ; and Appendix:Variations of "d"

Δ U+0394, Δ GREEK CAPITAL LETTER DELTA ← Γ [U+0393] Greek and Coptic Ε → [U+0395]

Translingual

Symbol

Δ

1. (mathematics, sciences) Alternative form of ∆: change in a variable
2. (chemistry) Used on the reaction arrow in a chemical equation, to show that energy in the form of heat is added to the reaction.

Usage notes

(mathematics): Unicode establishes a distinct symbol (∆) for particular use in mathematics, but the upper case delta here is often substituted for convenience.

Coordinate terms

• Δ on Wikipedia.Wikipedia

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English

Noun

Δ

1. (law) Abbreviation of defendant.

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Greek

Initialism

Δ • (D)

1. δύση, west (noun)
2. δυτικός west, westerly (adjective)

See also

• Appendix:Greek compass points (Appendix:Greek compass points)

Letter

Δ • (D) (uppercase, lowercase δ)

1. The upper case delta (δέλτα), the fourth letter of the modern Greek alphabet, representing a voiced interdental fricative (/ð/).

Numeral

Δ'

1. The number four in Greek numerals.

,Δ

1. The number 4000 in Greek numerals.

Coordinate terms

• (Greek-script letters) Α α (A a), Β β (B b), Γ γ (G g), Δ δ (D d), Ε ε (E e), Ζ ζ (Z z), Η η (Ē ē), Θ θ (Th th), Ι ι ℩ (I i ℩), Κ κ (K k), Λ λ (L l), Μ μ (M m), Ν ν (N n), Ξ ξ (X x), Ο ο (O o), Π π (P p), Ρ ρ (R r), Σ σ ς (S s s), Τ τ (T t), Υ υ (U u), Φ φ (Ph ph), Χ χ (Kh kh), Ψ ψ (Ps ps), Ω ω (Ō ō)
• (punctuation) · ;
• (diacritics) ᾿ ῾ ´ ` ῀ ¨ ¯ ˘

Descendants

• (Glagolitic): Ⰴ, ⰴ