sidereal
英[sa?'d??r??l]
美[sa?'d?r??l]
- adj. [天] 恒星的；根據(jù)星球運(yùn)行測(cè)定的
英英釋意
- 1. of or relating to the stars or constellations;
- "sidereal bodies"
- "the sidereal system"
- 2. (of divisions of time) determined by daily motion of the stars;
- "sidereal time"