Definition of asteroid
1 : any of the small rocky celestial bodies found especially between the orbits of Mars and Jupiter
2 : starfish
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Examples of asteroid in a Sentence
Most asteroids are found between Mars and Jupiter.
Origin and Etymology of asteroid
Greek asteroeidēs starlike, from aster-, astēr
asteroid
Definition of asteroid
1 : resembling a star asteroid bodies in sporotrichosis
2 : of or resembling a starfish
First Known Use of asteroid
1824
ASTEROID Defined for English Language Learners
asteroid
playDefinition of asteroid for English Language Learners
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: any one of thousands of small planets that circle around the sun
ASTEROID Defined for Kids
asteroid
playDefinition of asteroid for Students
: one of thousands of rocky objects that move in orbits mostly between those of Mars and Jupiter and have diameters from a fraction of a mile to nearly 500 miles (800 kilometers)
Medical Dictionary
asteroid
playMedical Definition of asteroid
: resembling a star
Learn More about asteroid
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See words that rhyme with asteroid Spanish Central: Translation of asteroid Nglish: Translation of asteroid for Spanish speakers Britannica English: Translation of asteroid for Arabic speakers Britannica.com: Encyclopedia article about asteroid
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