What does asteroid mean?

Definitions for asteroid
ˈæs təˌrɔɪdas·ter·oid

Here are all the possible meanings and translations of the word asteroid.

Princeton's WordNet

  1. asteroid(adj)

    any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)

  2. asteroid, star-shaped(adj)

    shaped like a star

Wiktionary

  1. asteroid(Noun)

    A naturally occurring solid object, which is smaller than a planet and is not a comet, that orbits a star

    Etymology: From ἀστεροειδής, from ἀστήρ + εἶδος.

  2. asteroid(Noun)

    In the Solar system, such a body that orbits within the orbit of Jupiter

    Etymology: From ἀστεροειδής, from ἀστήρ + εἶδος.

  3. asteroid(Noun)

    Any member of the taxonomic class Asteroidea; a starfish

    Etymology: From ἀστεροειδής, from ἀστήρ + εἶδος.

Webster Dictionary

  1. Asteroid(noun)

    a starlike body; esp. one of the numerous small planets whose orbits lie between those of Mars and Jupiter; -- called also planetoids and minor planets

    Etymology: [Gr. starlike, starry; 'asth`r star + e'i^dos form: cf. F. astrode. See Aster.]

Freebase

  1. Asteroid

    Asteroids are minor planets that are not comets, especially those of the inner Solar System. They have also been called planetoids, especially the larger ones. These terms have historically been applied to any astronomical object orbiting the Sun that did not show the disk of a planet and was not observed to have the characteristics of an active comet, but as small objects in the outer Solar System were discovered, their volatile-based surfaces were found to more closely resemble comets, and so were often distinguished from traditional asteroids. Thus the term asteroid has come increasingly to refer specifically to the small bodies of the inner Solar System out to the orbit of Jupiter. They are grouped with the outer bodies—centaurs, Neptune trojans, and trans-Neptunian objects—as minor planets, which is the term preferred in astronomical circles. In this article the term "asteroid" refers to the minor planets of the inner Solar System. There are millions of asteroids, many thought to be the shattered remnants of planetesimals, bodies within the young Sun's solar nebula that never grew large enough to become planets. The large majority of known asteroids orbit in the asteroid belt between the orbits of Mars and Jupiter or co-orbital with Jupiter. However, other orbital families exist with significant populations, including the near-Earth asteroids. Individual asteroids are classified by their characteristic spectra, with the majority falling into three main groups: C-type, S-type, and M-type. These were named after and are generally identified with carbon-rich, stony, and metallic compositions, respectively.

Chambers 20th Century Dictionary

  1. Asteroid

    as′tėr-oid, n. one of the minor planetary bodies revolving between the orbits of Mars and Jupiter.—adj. Asteroid′al. [Gr. astēr, a star, eidos, form.]

Editors Contribution

  1. asteroid

    A naturally occurring form of matter in space that orbits a star or a specific planet.

    Asteroids in space cause scientists to explore and try to understand their creation and being.

    Submitted by MaryC on September 11, 2016  

How to pronounce asteroid?

  1. Alex
    Alex
    US English
    Daniel
    Daniel
    British
    Karen
    Karen
    Australian
    Veena
    Veena
    Indian

How to say asteroid in sign language?

  1. asteroid

Numerology

  1. Chaldean Numerology

    The numerical value of asteroid in Chaldean Numerology is: 9

  2. Pythagorean Numerology

    The numerical value of asteroid in Pythagorean Numerology is: 1

Examples of asteroid in a Sentence

  1. Charles El Mir:

    It may sound like science fiction but a great deal of research considers asteroid collisions, for example, if there's an asteroid coming at earth, are we better off breaking it into small pieces, or nudging it to go a different direction ? And if the latter, how much force should we hit it with to move it away without causing it to break ?

  2. Tomoyuki Kudo:

    Some studies suggested the radius of the ring is about where [our] solar systems asteroid belt would be. Other observations put the size out where Neptune would be, our ALMA observations provided a clear answer: Both are right.

  3. Ben Reed:

    Humans and robots are working together on a client that's in space, that accesses robotics and advanced tools ... So the fundamentals of this (asteroid) mission are no different.

  4. Dante Lauretta:

    Thats really exciting, you can learn a lot by bringing a sample back from an asteroid, but were going to learn exponentially more by bringing samples back from these two asteroids, which initially looked very similar to each other, may still be related to each other but have had different histories.

  5. Buzz Aldrin:

    It's an integrated plan that knits together return[ing] to the moon on a commercial and international basis, leveraging asteroid rendezvous, and settling Mars on a carefully developed risk-mitigation architecture, it includes the use of a robotic cycler between Mars and Earth that will revolutionize the economics and safety aspects of human missions to Mars.

Images & Illustrations of asteroid

  1. asteroidasteroidasteroidasteroidasteroid

Popularity rank by frequency of use

asteroid#10000#24458#100000

Translations for asteroid

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"asteroid." Definitions.net. STANDS4 LLC, 2020. Web. 7 Aug. 2020. <https://www.definitions.net/definition/asteroid>.

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