Asteroidとは 意味・読み方・使い方
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意味・対訳 小惑星、ヒトデ
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Asteroidの学習レベル | レベル：10英検：1級以上の単語学校レベル：大学院以上の水準 |
「Asteroid」を含む例文一覧
該当件数 : 64件
a small heavenly body called asteroid発音を聞く 例文帳に追加
小遊星という小天体 - EDR日英対訳辞書
a type of curved line, called asteroid発音を聞く 例文帳に追加
星芒形という曲線 - EDR日英対訳辞書
Hayabusa 2 will travel to the asteroid 1999JU3.発音を聞く 例文帳に追加
はやぶさ２は小惑星｢1999JU3｣へ行く。 - 浜島書店 Catch a Wave
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遺伝子名称シソーラスでの「Asteroid」の意味 |
|
asteroid
| fly | 遺伝子名 | asteroid |
| 同義語（エイリアス） | CG4426; S | |
| SWISS-PROTのID | --- | |
| EntrezGeneのID | EntrezGene:33282 | |
| その他のDBのID | FlyBase:FBgn0015905 |
本文中に表示されているデータベースの説明
Wiktionary英語版での「Asteroid」の意味 |
asteroid
名詞
- (astronomy) A naturally occurring solid object, which is smaller than a planet, larger than a meteoroid and not a comet, that orbits a star and often has an irregular shape.
- (astronomy) In the Solar system, such a body that orbits within the orbit of Jupiter
使用する際の注意点
The term "asteroid" has never been precisely defined. It was coined for objects which looked like stars in a telescope but moved like planets. These were known from the asteroid belt between Mars and Jupiter, and were later found co-orbiting with Jupiter (Trojan asteroids) and within the orbit of Mars. They were naturally distinguished from comets, which did not look at all starlike. Starting in the 1970s, small non-cometary bodies were found outside the orbit of Jupiter, and usage became divided as to whether to call these "asteroids" as well. Some astronomers restrict the term "asteroid" to rocky or rocky-icy bodies with orbits up to Jupiter. They may retain the term planetoid for all small bodies, and thus tend to use it for icy or rocky-icy bodies beyond Jupiter, or may use dedicated words such as centaurs, Kuiper belt objects, transneptunian objects, etc. for the latter. Other astronomers use "asteroid" for all non-cometary bodies smaller than a planet, even large ones such as Sedna and (occasionally) Pluto. However, the distinction between asteroid and comet is an artificial one; many outer "asteroids" would become comets if they ventured nearer the Sun. The IAU terminology since 2006 has been small Solar System body for any body that orbits the Sun directly and whose shape is not dominated by gravity.
派生語
- Apohele asteroid
- asteroid belt
- Atira asteroid
- kuiperoid
- Vatira asteroid
関連する語
語源 2
Borrowed from Ancient Greek ἀστεροειδής (asteroeidḗs), from ἀστήρ (astḗr, “star”) + εἶδος (eîdos, “form”). Analyzable as aster- + -oid
Further reading
- “asteroid”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
- “asteroid”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.
アナグラム
- ideators
Weblio例文辞書での「Asteroid」に類似した例文 |
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asteroid
an asteroid
the celestial body
the starry heavens
the polar star
北極星.
the polar star
the starry heavens
a planet
「Asteroid」を含む例文一覧
該当件数 : 64件
Hayabusa Samples Found to Contain Asteroid Particles発音を聞く 例文帳に追加
はやぶさ試料が小惑星の微粒子を含んでいると判明 - 浜島書店 Catch a Wave
It will create a hole in the surface of the asteroid with explosives.発音を聞く 例文帳に追加
同機は爆薬を使ってその小惑星の表面に穴を作る。 - 浜島書店 Catch a Wave
This is the first time ever that samples from an asteroid have been brought back to Earth.発音を聞く 例文帳に追加
小惑星の試料が地球に持ち帰られたのは史上初だ。 - 浜島書店 Catch a Wave
The observation staff at the Center says, "If we observe an asteroid for three days, we can discover its orbit."発音を聞く 例文帳に追加
同センターの観測担当者は「小惑星を３日間観測すれば，その軌道がわかる。」と言う。 - 浜島書店 Catch a Wave
The planned destination of Hayabusa 2 is an asteroid named 1999 JU3.例文帳に追加
はやぶさ２の予定されている目的地は｢1999 JU3｣という名前の小惑星だ。 - 浜島書店 Catch a Wave
It will be possible to predict a few years beforehand whether an asteroid will collide with the earth or not.発音を聞く 例文帳に追加
小惑星が地球に衝突するかどうかを数年前の段階で予測することも可能になる。 - 浜島書店 Catch a Wave
Hayabusa 2 will travel to the asteroid 1999 JU3, 300 million kilometers from the earth.例文帳に追加
はやぶさ２は，地球から３億キロ離れた｢1999 JU3｣という小惑星に向かう。 - 浜島書店 Catch a Wave
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Asteroidのページの著作権
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