fireball
noun
fire·ball
ˈfī(-ə)r-ˌbȯl 
1
: a ball of fire
also
: something resembling such a ball
the primordial fireball associated with the beginning of the universe —
Scientific American
Scientific American 2
: a brilliant meteor that may trail bright sparks
3
: the highly luminous cloud of vapor and dust created by a nuclear explosion
4
: a highly energetic person
Examples of fireball in a Sentence
The house erupted into a fireball.
what this club needs is a fireball who will bring some sorely needed energy and enthusiasm
Recent Examples on the Web
At higher altitudes, there's less atmospheric moisture and dust, which means clearer, crisper skies for observing meteors, fireballs, and other cosmic activity.
—Joe Edwards, MSNBC Newsweek, 22 July 2025
The character is one of the few female fighters in the series and can shoot fireballs from her hands.
—Blake Nelson, San Diego Union-Tribune, 22 July 2025
The large, bright meteors, usually referred to as fireballs, won't be as spectacular this year due to how close the Perseid peak is to the August full moon.
—Joyce Orlando, Nashville Tennessean, 22 July 2025
However, in 2025, the showers' peak will not meet these ideal conditions because the moon will be too bright, Robert Lunsford, the American Meteor Society's newsletter editor and fireball report coordinator, told USA TODAY.
—Julia Gomez, USA Today, 18 July 2025
See All Example Sentences for fireball
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Joe Edwards, MSNBC Newsweek, 22 July 2025
The character is one of the few female fighters in the series and can shoot fireballs from her hands.
—Blake Nelson, San Diego Union-Tribune, 22 July 2025
The large, bright meteors, usually referred to as fireballs, won't be as spectacular this year due to how close the Perseid peak is to the August full moon.
—Joyce Orlando, Nashville Tennessean, 22 July 2025
However, in 2025, the showers' peak will not meet these ideal conditions because the moon will be too bright, Robert Lunsford, the American Meteor Society's newsletter editor and fireball report coordinator, told USA TODAY.
—Julia Gomez, USA Today, 18 July 2025
See All Example Sentences for fireball
Cite this Entry
“Fireball.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fireball. Accessed 14 Aug. 2025.
Copy CitationKids Definition
fireball
noun
fire·ball
-ˌbȯl
1
: a ball of fire
2
: a very bright meteor
3
: the glowing cloud of vapor and dust created by a nuclear explosion
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