groundburst

noun
ground·​burst | \ ˈgrau̇n(d)-ˌbərst How to pronounce groundburst (audio) \
variants: or ground burst

Definition of groundburst

: the detonation of a nuclear warhead at ground level

First Known Use of groundburst

circa 1951, in the meaning defined above

Keep scrolling for more

Learn More about groundburst

Time Traveler for groundburst

Time Traveler

The first known use of groundburst was circa 1951

See more words from the same year

Statistics for groundburst

Cite this Entry

“Groundburst.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/groundburst. Accessed 8 Aug. 2020.

More from Merriam-Webster on groundburst

Thesaurus: All synonyms and antonyms for groundburst

Rhyming Dictionary: Words that rhyme with groundburst

Comments on groundburst

What made you want to look up groundburst? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt painting a young scholar and his tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!