asteroid


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as·ter·oid

 (ăs′tə-roid′)
n.
1. Astronomy Any of numerous small solar system bodies that revolve around the sun, with orbits lying chiefly between Mars and Jupiter and characteristic diameters roughly between one and several hundred kilometers. Also called minor planet, planetoid.
2. Zoology See starfish.
adj. also as·ter·oi·dal (ăs′tə-roid′l)
Star-shaped.

[From Greek asteroeidēs, starlike : astēr, star; see ster- in Indo-European roots + -oeidēs, -oid.]

asteroid

(ˈæstəˌrɔɪd)
n
1. (Celestial Objects) Also called: minor planet or planetoid any of numerous small celestial bodies that move around the sun mainly between the orbits of Mars and Jupiter. Their diameters range from 930 kilometres (Ceres) to less than one kilometre
2. (Zoology) Also called: asteroidean any echinoderm of the class Asteroidea; a starfish
adj
3. (Zoology) of, relating to, or belonging to the class Asteroidea
4. shaped like a star
[C19: from Greek asteroeidēs starlike, from astēr a star]

as•ter•oid

(ˈæs təˌrɔɪd)

n.
1. any of the thousands of small, solid bodies that revolve about the sun in orbits largely between Mars and Jupiter.
adj.
2. starlike.
[1795–1805; < Greek asteroeidḗs starry, starlike. See aster, -oid]
as`ter•oi′dal, adj.

as·ter·oid

(ăs′tə-roid′)
Any of numerous small, often irregularly shaped bodies that orbit the sun. Asteroids range from several hundred miles in diameter to the size of a speck of dust. ♦ Most are found in the region between the orbits of Mars and Jupiter known as the asteroid belt. See Note at solar system.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.asteroid - any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)
Chiron - an asteroid discovered in 1977; it is unique in having an orbit lying mainly between the orbits of Saturn and Uranus
minor planet, planetoid - any of numerous small celestial bodies that move around the sun
Adj.1.asteroid - shaped like a starasteroid - shaped like a star      
angulate, angular - having angles or an angular shape

asteroid

noun planetoid, minor planet It's only a matter of time before a giant asteroid destroys the Earth.

Asteroids

Ceres, Eros, Hermes, Hesperia, Juno, Pallas, Phaethon
Translations
asteroidi

asteroid

[ˈæstərɔɪd] Nasteroide m

asteroid

[ˈæstərɔɪd] nastéroïde m

asteroid

nAsteroid m

asteroid

[ˈæstərɔɪd] nasteroide m
References in classic literature ?
A collision was possible, and might be attended with deplorable results; either the projectile would deviate from its path, or a shock, breaking its impetus, might precipitate it to earth; or, lastly, it might be irresistibly drawn away by the powerful asteroid.
The asteroid passed several hundred yards from the projectile and disappeared, not so much from the rapidity of its course, as that its face being opposite the moon, it was suddenly merged into the perfect darkness of space.
Is he not the celebrated author of The Dynamics of an Asteroid, a book which ascends to such rarefied heights of pure mathematics that it is said that there was no man in the scientific press capable of criticizing it?
I should keep well within the limit of that early excess now, and should not liken the creation of Shakespeare to the creation of any heavenly body bigger, say, than one of the nameless asteroids that revolve between Mars and Jupiter.
There are two different approaches researchers have taken to deal with the scenario of an asteroid which is headed on a crash-course with Earth.
Even so, there's very little chance the asteroid - which has been dubbed Asteroid 2018 CB - will strike Earth.
The 2002 AJ129 asteroid has been classed a 'potentially hazardous' by Nasa and will fly past Earth on Image Credit: Shutterstock IANS
The team used a new search technique that also identified the oldest known asteroid family, which extends throughout the inner region of the main asteroid belt.
According to The Register, NASA is currently on the design phase of a spacecraft known as the Double Asteroid Redirection Test (DART), which could knock potential doomsday asteroids onto less-threatening flight paths.
It is thought that an asteroid or a comet was responsible for the blast.
Researchers explored seven effects associated with asteroid impacts heat, pressure shock waves, flying debris, tsunamis, wind blasts, seismic shaking and crateringand estimated their lethality for varying sizes.
Ceres, the largest object in the asteroid belt was deemed large enough to be reclassified as a dwarf planet in 2006.