sidereal rotation period

/S IH1 D IH1 R IY0 AH0 L R OW0 T EY0 SH AH0 N P IH0 R IY0 AH0 D/
noun
  1. 1

    (astronomy) The sidereal day of a planet. (I.e., in the definition for "sidereal day", replace "Earth" by the given planet.)