mega-watt

noun

One million (10⁶) watts, abbreviated as MW.

OriginEnglish watt ← Ancient Greek μέγᾰς (mégăs) ← Proto-Hellenic *mégas →
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Meanings

nounmega-watt (plural mega-watts)

plural mega-watts · alternative megawatt

  1. One million (10⁶) watts, abbreviated as MW.

Origin

  1. Proto-Indo-European*méǵh₂s
  2. Proto-Hellenic*mégas
  3. Ancient Greekμέγᾰς (mégăs)
  4. Englishmega-
  5. Englishwatt
  6. Englishmega-watt

From mega- + watt.

Full word history & related roots →
Cite this entry
APA

mega-watt. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/mega-watt

MLA

“mega-watt.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/mega-watt. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “mega-watt,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/mega-watt.

Source: mega-watt on Wiktionary, CC BY-SA 4.0.