Speakur

Word Pronunciation & Dictionary

dirac delta

Word Rarity Rare

Frequency: Zipf frequency 2.58 in modern English

Syllables
dirac delta
IPA
14
Scrabble Score
10
Letters
1
Syllables
8
Unique Chars

Meaning

noun

A function-like symbol denoted as δ, with the property ∫f(t)δ(x-t)dt=f(x), informally understood as a function with an infinite value at 0 and zero elsewhere, and formally as a distribution or a measure.

Etymology

Named after English theoretical physicist Paul Dirac (1902–1984); the notation was chosen because the symbol behaves analogously to the Kronecker delta.

Inflected Forms

Dirac deltas (plural)

Questions

What does dirac delta mean?
A function-like symbol denoted as δ, with the property ∫f(t)δ(x-t)dt=f(x), informally understood as a function with an infinite value at 0 and zero elsewhere, and formally as a distribution or a measure.
Where does dirac delta come from?
Named after English theoretical physicist Paul Dirac (1902–1984); the notation was chosen because the symbol behaves analogously to the Kronecker delta.

How to pronounce dirac delta

  1. Open the pronunciation page — Open the Speakur entry for “dirac delta”.
  2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “dirac delta”.
  4. Repeat and practice — Say “dirac delta” aloud, matching stress and vowels until it feels natural.