pico-joule

noun

One million millionth (10⁻¹²) of a joule. Symbol: pJ.

OriginEnglish joule ← Spanish pico ← Old Spanish bico →
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Meanings

nounpico-joule (plural pico-joules)

plural pico-joules · alternative picojoule

  1. One million millionth (10⁻¹²) of a joule. Symbol: pJ.

Origin

  1. Latinbeccus
  2. Old Spanishbico
  3. Spanishpico
  4. Englishpico-
  5. Englishjoule
  6. Englishpico-joule

From pico- + joule.

Full word history & related roots →
Cite this entry
APA

pico-joule. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/pico-joule

MLA

“pico-joule.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pico-joule. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “pico-joule,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/pico-joule.

Source: pico-joule on Wiktionary, CC BY-SA 4.0.