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

Translingual edit

Symbol edit

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
  3. (mathematics, set theory) Used to represent the symmetric difference (also known as the disjunctive union) of two sets
  4. (genetics) Used before a gene name as a modifier to denote a deletion mutation of that gene.
  5. (music) Used after a pitch class to denote a major seventh chord with a note of said pitch as its root.

Usage notes edit

(mathematics): Unicode establishes a distinct symbol () for particular use in mathematics, but Δ is often substituted for convenience.

Coordinate terms edit

English edit

Noun edit

Δ

  1. (law) Abbreviation of defendant.

Albanian edit

Pronunciation edit

Letter edit

Δ (Dh) (upper case Δ, lower case δ)

  1. The 6th letter of the Arvanitic Albanian Greek-script alphabet.

See also edit

Ancient Greek edit

Etymology edit

From the Phoenician letter 𐤃 (d, dālet).

Letter edit

Δ (D) (uppercase, lowercase δ)

  1. The letter delta (δέλτα (délta)), the fourth letter of the ancient Greek alphabet.

Derived terms edit

See also edit

Cypriot Arabic edit

Pronunciation edit

Letter edit

Δ (lower case δ)

  1. A letter of the Cypriot Arabic alphabet, written in the Latin script.

Greek edit

Adjective edit

Δ (D)

  1. Abbreviation of δυτικός (dytikós, west, westerly).

Noun edit

Δ (D)

  1. Abbreviation of δύση (dýsi, west).

See also edit

Letter edit

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/).

Coordinate terms edit

Descendants edit

See also edit

Wakhi edit

Pronunciation edit

Letter edit

Δ (lower case δ)

  1. A letter of the Wakhi alphabet, written in the Latin script.