Tikibu: pronunciation dictionary with use examples

Word: libration
IPA transcription: [l,aɪbɹ'eɪʃən]
noun meaning of the word
  • Synonyms: libration
    Meaning: (astronomy) a real or apparent slow oscillation of a moon or satellite; "the libration of the moon"
Usage examples
  • Also that the moon's rotation relative to the earth has been destroyed by past tidal action in it (the only residue of ancient lunar rotation now being a scarcely perceptible libration), so that it turns always the same face towards us.