Word.ws English Dictionary

megatonne

megatonne is the alternative spelling of megaton.

Meaning of megaton

Noun

megaton (plural megatons)

  1. A measure of the strength of an explosion or a bomb based on how many million tons of TNT would be needed to produce the same energy. (A derived unit for TNT equivalent.)
    • Holonyms: gigaton < teraton < petaton < exaton (rare) < zettaton (rare) < yottaton (rare)
  2. One million short tons (10⁶ × 2000 lb).
  3. One million long tons (10⁶ × 2240 lb).
  4. One million metric tons (10⁶ × 2204.6 lb).
    • Holonym: gigaton

Forms of megatonne

pluralmegatonnes

Origin of megatonne

From mega- + tonne.

Questions about megatonne

What is megatonne the alternative spelling of?
Megatonne is the alternative spelling of megaton.

Words near megatonne in the dictionary

  1. megaticks
  2. megatidal
  3. megaton
  4. megatonnage
  5. megatonnages
  6. megatonne
  7. megatonnes
  8. megatons
  9. megatooth shark
  10. megatooth sharks
  11. megatoothed

Source and license

Adapted from Wiktionary: megatonne (page history and authors); megaton (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: “megatonne.” Word.ws, https://word.ws/megatonne. Based on Wiktionary, CC BY-SA 4.0.