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asteroid如何读

英：[ˈæstərɔɪd]

美：[ˈæstərɔɪd]

asteroid是什么意思

n.小行星；海盘车
adj.星状的

asteroid自然拼读

as·ter·oid

ae st roId

asteroid变形

复数:asteroids

asteroid扩展

asteroidal (adj.)

asteroid词根

词根：aster

adj.

asteroidal 星状的

n.

aster [植] 紫菀属植物；星状体

asteroid英英释义

noun

any of thousands of celestial bodies with diameters between one and five hundred miles that revolve around the sun in orbits that lie mostly between the orbits of Jupiter and Mars; planetoid.Most asteroids in our solar system are located in what is called the asteroid belt.

asteroid词组

asteroid belt小行星带

asteroid词源中文解释

"行星的一种，主要分布在火星和木星之间的小行星"，1802年，德国出生的英国天文学家威廉·赫歇尔（1738-1822）创造了这个词，可能来自希腊语 asteroeides "类似星星"，由 aster "星星"（来自 PIE 词根 *ster-（2）"星星"）和 -eidos "形状，形式"（参见 -oid）组成。相关词汇： Asteroidal。

asteroid_医学行业词汇

星样的

asteroid_数学行业词汇

星形线

asteroid词源英文解释

Noun Greek aster-, astḗr "star" + -oid >entry 1, probably after Greek asteroeidḗs "starlike, starry"; (sense 2) after New Latin Asteroidea, class name — more at star >entry 1 Note: The first use in print of asteroid in its current sense was by the astronomer William herschel, in the paper "Observations on the two lately discovered celestial Bodies," "Read May 6, 1802" (Philosophical Transactions of the Royal Society of London, for the year MDCCCII, part II [1802], p. 228-29): "With this intention, therefore, I have endeavoured to find out a leading feature in the character of these new stars; and, as planets are distinguished from the fixed stars by their visible change of situation in the zodiac, and comets by their remarkable comas, so the quality in which these objects differ considerably from the two former species, is that they resemble small stars so much as hardly to be distinguished from them, even by very good telescope …From this, their asteroidical appearance, if I may use that expression, therefore, I shall take my name, and call them Asteroids; reserving to myself, however, the liberty of changing that name, if another, more expressive of their nature, should occur." The coinage and reception of this word have been examined in exhaustive detail by Clifford J. Cunningham in "Discovery of the origin of the word asteroid and the related terms asteroidal, planetoid, planetkin, planetule and cometoid," Studia Etymologica Cracoviensia, vol. 20 (2015), pp. 47-62. Cunningham establishes that the word asteroid was suggested by the classicist Charles Burney (1757-1817), through the mediation of his father, the musician and composer Charles Burney (1726-1814), a close friend of William Herschel. Left unanswered, however, and probably unaswerable, is the question of how Burney came upon the word: did he derive it himself, from Greek astḗr "star" and the English suffix -oid, already somewhat productive, or did he consult a Greek dictionary? Note that Greek asteroeidḗs (glossed "sternartig"= "starlike"), not a well-attested word, is entered in Johann Gottlob Schneider's Kritisches griechisch-deutsches Handwörterbuch (Züllichau/Leipzig, 1797), probably the most comprehensive dictionary that would have been available to Burney. As is clear from Herschel's words, the choice of asteroid was determined by their visual resemblance to stars, however inappropriate it might seem to twenty-first century astronomy. Cunningham points out that planetoid—a better descriptive term, as an asteroid resembles a planet more than a star—was actually used (as Italian and French planetoides) by Giuseppe Piazzi, who spotted Ceres, the first asteroid to be discovered. Independently of Piazzi, planetoid was also arrived at by Henry Brougham, editor of the Edinburgh Review, who acidly criticized Herschel's choice of asteroid: "Why not, for instance, call them Concentric Comets, or Planetary Comets, or Cometary Planets? Or, if a single term must be found, why may we not coin such a phrase as Planetoid or Cometoid?" (Edinburgh Review, January, 1803, p. 430). Whatever its defects, the term asteroid has nonetheless become thoroughly established in astronomy. Adjective borrowed from Greek asteroeidḗs "starlike, starry," from aster-, astḗr "star, the plant Aster amellus, starfish" + -oeidēs -oid >entry 2 — more at star >entry 1

The first known use of asteroid was in 1802

asteroid儿童词典英英释义

asteroidnoun

one of thousands of small rocky bodies between Mars and Jupiter with diameters from a fraction of a kilometer to nearly 800 kilometers

asteroid医学词典英英释义

asteroidadjective

resembling a star

asteroid 例句

1 The Earth and its companion the Moon must be bombarded by comets and small asteroids, debris left over from the formation of the solar system.

2 They talked about asteroids, volcanoes, and melting ice caps.

3 We’d huddle together in a shuttle constructed out of chairs and bedsheets, and in T minus ten we’d blast off into space, visit the moon, Mars, the asteroid belt and beyond.

4 As of July 2001, twenty-six thousand asteroids had been named and identified–half in just the previous two years.

5 The largest asteroid is Ceres, which is about a quarter the size of the moon.

最大的小行星是谷神星,体积约为月球的1/4.

6 Large meteorites actually come from the asteroid belt.

大型陨星实际上是来自小行星带。

7 “I’m only saying,” said Gregory Powell, patiently, as one explaining electronics to an idiot child, “that according to spec, those robots are equipped for asteroid mining without supervision. We’re not supposed to watch them.”

8 The asteroid vaporized on impact, launching a cubic mile of rock into the sky.

小行星在碰撞时蒸发, 并向空中迸射出一立方英里的碎石.

9 The asteroid isn’t going to pass harmlessly by.

10 The rest of our family and friends are asteroids and comets floating around the planets orbiting the Sun.

11 For example, the dinosaurs may have been exterminated by the impact of an asteroid whose orbit was completely determined by the laws of classical mechanics.

12 The actual impact of a small comet or asteroid with the Moon might make a momentary explosion sufficiently bright to be visible from the Earth.

13 When the zigzagging UFO comes he lays in a salvo of torpedoes only if the asteroid storm isn't too heavy.

14 Four billion years ago, the behemoth conspired with Saturn to combine their gravitational might to hurl comets and asteroids across the solar system.

15 The goal of the program is to send astronauts to explore an asteroid by 2025.

该项目的目标是在2025年把宇航员送入太空去探索小行星。

16 "Asteroid strike?" said Aziraphale.

“小行星撞击？”亚茨拉菲尔说。

17 There are twelve elements named after people, and plenty of stars, comets and asteroids—but no planets or planetary moons.

18 Now utopia has grown unfashionable, as we have gained a deeper appreciation of the range of threats facing us, from asteroid strike to epidemic flu and to climate change.

现如今，这种乌托邦空想已经过时了，我们对所面临的威胁有了更深刻的认识，从彗星撞击到流行感冒，再到气候变化。

19 Most asteroids are found between Mars and Jupiter.

20 So from the point of view of asteroid research the twentieth century was essentially just a long exercise in bookkeeping.