Word.ws English Dictionary

petawatt-hour

petawatt-hour noun: a unit of energy equal to that provided by one petawatt of power acting for one hour (3·6 × 10¹⁸ joules).

Noun

petawatt-hour (plural petawatt-hours)

  1. A unit of energy equal to that provided by one petawatt of power acting for one hour (3·6 × 10¹⁸ joules).
    • Holonym: terawatt-year (31.536e18 J)
    • Meronyms: kilojoule (1.000e3 J) < watt-hour (3.600e3 J) < milliwatt-year (31.536e3 J) < megajoule (1.000e6 J) < kilowatt-hour (3.600e6 J) < watt-year (31.536e6 J) < gigajoule (1.000e9 J) < megawatt-hour (3.600e9 J) < kilowatt-year (31.536e9 J) < terajoule (1.000e12 J) < gigawatt-hour (3.600e12 J) <...

Forms of petawatt-hour

pluralpetawatt-hours

Origin of petawatt-hour

By surface analysis, petawatt + hour, or, by surface analysis, peta- + watt-hour.

Questions about petawatt-hour

What does petawatt-hour mean?
Petawatt-hour means a unit of energy equal to that provided by one petawatt of power acting for one hour (3·6 × 10¹⁸ joules).
What part of speech is petawatt-hour?
Petawatt-hour is a noun.
What is the plural of petawatt-hour?
The plural of petawatt-hour is petawatt-hours.

Words near petawatt-hour in the dictionary

  1. petauristids
  2. petaurists
  3. petawatt
  4. petawatt hour
  5. petawatt hours
  6. petawatt-hour
  7. petawatt-hours
  8. petawatts
  9. Petawawa
  10. PETC
  11. petcare

Source and license

Adapted from Wiktionary: petawatt-hour (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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