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sidereal month

/saɪˌdɪriəl mənθ/
IPA guide

Definitions of sidereal month
  1. noun
    period between successive conjunctions with a star, 27.322 days
    see moresee less
    type of:
    month
    a time unit of approximately 30 days
    sidereal time
    measured by the diurnal motion of stars
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