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1

asteroid

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noun as·ter·oid \ˈas-tə-ˌrȯid\

Simple Definition of asteroid

  • : any one of thousands of small planets that circle around the sun

Source: Merriam-Webster's Learner's Dictionary

Full Definition of asteroid

  1. 1 :  any of the small rocky celestial bodies found especially between the orbits of Mars and Jupiter

  2. 2 :  starfish

asteroidal

play \ˌas-tə-ˈrȯi-dəl\ adjective

Examples of asteroid in a sentence

  1. Most asteroids are found between Mars and Jupiter.



Origin and Etymology of asteroid

Greek asteroeidēs starlike, from aster-, astēr


First Known Use: 1802


2

asteroid

adjective as·ter·oid

Definition of asteroid

  1. 1 :  resembling a star <asteroid bodies in sporotrichosis>

  2. 2 :  of or resembling a starfish



1854

First Known Use of asteroid

1854


ASTEROID Defined for Kids

asteroid

play
noun as·ter·oid \ˈa-stə-ˌrȯid\

Definition of asteroid for Students

  1. :  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

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adjective as·ter·oid \ˈas-tə-ˌrȯid\

Medical Definition of asteroid

  1. :  resembling a star





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