libration — 英語辞典

名詞

1. The act of librating.

   用法

   • 可算
   • 不可算

2. The apparent wobble or variation in the visible side of the Moon that permanently faces the Earth, allowing observers on Earth to see, over a period of time, slightly more than half of the lunar surface.

   用法

   • 可算
   • 不可算

3. A similar rotational or orbital characteristic of some other celestial body.

   用法

   • broadly
   • 可算
   • 不可算

4. The oscillation of an angle about a stable equilibrium point.

   用法

   • 可算
   • 不可算

5. A vibrational degree of freedom whereby a group of atoms partly rotates back and forth, similar to the Moon's motion.

   用法

   • 可算
   • 不可算

6. A wavering between two opposing thoughts or choices.

   用法

   • 可算
   • 比喩的
   • 不可算

   例文

   その他の例文 (1)

   We may not quarrel with attempts to picture the libration of emotion which sways Clytaemestra as she veers from love for her husband to the desire to take vengeance upon him[…]

名詞

1. (astronomy) a real or apparent slow oscillation of a moon or satellite

   上位語

   oscillationvariation

   例文

   the libration of the moon