Meanings
noun
- natural sciencesPlanck's constant divided by 2π, symbolized ℏ; the quantum of angular momentum and spin.
Synonyms: rationalize Planck constant, reduce Planck constant, h bar
Synonyms & antonyms
nounPlanck's constant divided by 2π, symbolized ℏ; the quantum of angular momentum and spin.
Similar
Origin
Named after English physicist Paul Dirac.
Full word history & related roots →Cite this entry
APA
Dirac constant. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Dirac%20constant
MLA
“Dirac constant.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Dirac%20constant. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “Dirac constant,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Dirac%20constant.
Source: Dirac constant on Wiktionary, CC BY-SA 4.0.