Word.ws English Dictionary

megawatt-hour

megawatt-hour noun: a unit of energy equal to that provided by one megawatt acting for one hour (3·6 × 10⁹ joules).

Noun

megawatt-hour (plural megawatt-hours)

  1. A unit of energy equal to that provided by one megawatt acting for one hour (3·6 × 10⁹ joules).
    • Holonyms: kilowatt-year (31.536e9 J) < terajoule (1.000e12 J) < gigawatt-hour (3.600e12 J) < megawatt-year (31.536e12 J) < petajoule (1.000e15 J) < terawatt-hour (3.600e15 J) < gigawatt-year (31.536e15 J) < exajoule (1.000e18 J) < petawatt-hour (3.600e18 J) < terawatt-year (31.536e18 J)
    • Meronyms: yoctojoule (1.000e-24 J) < zeptojoule (1.000e-21 J) < attojoule (1.000e-18 J) < hartree (4.35974e-18 J) < femtojoule (1.000e-15 J) < picojoule (1.000e-12 J) < nanojoule (1.000e-9 J) < microjoule (1.000e-6 J) < millijoule (1.000e-3 J) < joule (1 J) < milliwatt-hour (3.6 J) < microwatt-year...

Forms of megawatt-hour

pluralmegawatt-hours

Origin of megawatt-hour

By surface analysis, megawatt + hour, or, by surface analysis, mega- + watt-hour.

Questions about megawatt-hour

What does megawatt-hour mean?
Megawatt-hour means a unit of energy equal to that provided by one megawatt acting for one hour (3·6 × 10⁹ joules).
What part of speech is megawatt-hour?
Megawatt-hour is a noun.
What is the plural of megawatt-hour?
The plural of megawatt-hour is megawatt-hours.

Words near megawatt-hour in the dictionary

  1. megawatt
  2. megawatt hour
  3. megawatt hours
  4. megawatt year
  5. megawatt years
  6. megawatt-hour
  7. megawatt-hours
  8. megawatt-year
  9. megawatt-years
  10. megawattage
  11. megawattages

Source and license

Adapted from Wiktionary: megawatt-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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