Word.ws English Dictionary

attojoule

attojoule noun: an SI unit of energy, work, and heat equal to 10⁻¹⁸ joules. Symbol: aJ.

Noun

attojoule (plural attojoules)

  1. An SI unit of energy, work, and heat equal to 10⁻¹⁸ joules. Symbol: aJ
    Synonyms:
    aJ

Synonyms of attojoule

Forms of attojoule

pluralattojoules

Origin of attojoule

From atto- + joule.

Questions about attojoule

What does attojoule mean?
Attojoule means an SI unit of energy, work, and heat equal to 10⁻¹⁸ joules. Symbol: aJ.
What part of speech is attojoule?
Attojoule is a noun.
What is the plural of attojoule?
The plural of attojoule is attojoules.

Words near attojoule in the dictionary

  1. attogram
  2. attogramme
  3. attogrammes
  4. attograms
  5. attohertz
  6. attojoule
  7. attokatal
  8. attokatals
  9. attolent
  10. attoliter
  11. attoliters

Source and license

Adapted from Wiktionary: attojoule (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “attojoule.” Word.ws, https://word.ws/attojoule. Based on Wiktionary, CC BY-SA 4.0.