英和和英

発音

• (Received Pronunciation) IPA: /ɔː.bɪt.əl/, /ɔː.bɪt.l̩/
• (General American) IPA: /ɔɹ.bət.l̩/
• 韻: -ɔː(ɹ)bɪtəl

形容詞

orbital (not comparable)

1. Of or relating to, or forming an orbit (such as the orbit of a moon, planet, or spacecraft).
   • 2021 December 24, Don Lincoln, “The telescope that will replace Hubble will launch on Christmas. Here’s why it matters”, in CNN‎:

     The 1.2-meter-diameter (4-foot-diameter) telescope has set off on a monthlong journey to its orbital destination of the sun-Earth Lagrange point L2, which is nearly 1 million miles (1.6 million kilometers) away from Earth and also home to NASA’s James Webb Space Telescope. Euclid will keep pace with Earth as our planet orbits the sun.

2. (anatomy) Of or relating to the eye socket (eyehole).
3. (chiefly UK) (of roads, railways) Passing around the outside of an urban area.

   The M25 is an orbital motorway around London.

   • 2019 October 23, Rail, pages 22, 23:

     The rail orbital routes outside of the M25 and South Coast are challenging. The corridors aren't particularly reliable, and in some places they don't exist. [...] But the reliability and journey times, particularly on the orbital routes: one train an hour from Gatwick Airport to Reading? Surely we can do better than that?

派生語

名詞

orbital (plural orbitals)

1. (physics) A specification of the energy and probability density of one or more electrons at any point in an atom or molecule, representable as a wave function.

   Hyponyms: antibonding orbital, atomic orbital, bonding orbital, hybrid orbital, frontier orbital, molecular orbital

2. (chiefly UK) Ellipsis of orbital motorway.
3. Ellipsis of orbital sander.
   • 1967, Popular Mechanics, volume 128, number 6, page 166:

     As with most power tools, orbitals can be divided into light and heavy-duty categories.

派生語

• inner orbital complex
• intraorbital
• molecular orbital theory
• orbital quantum number

参考

• quantum number

参照

• “orbital”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “orbital”, in Merriam-Webster.com Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.

アナグラム

• tar boil, tar-boil