sidereal

形容词 adj.
中文释义
英 /saɪˈdɪə.ɹi.əl/    美 /saɪˈdɪɚ.i.əl/|/sɪˈdɪɚ.i.əl/

英文释义

形容词 adj.
  1. Of or relating to the stars. not-comparable
    — These fringes of lamplight, struggling up through smoke and thousandfold exhalation, some fathoms into the ancient reign of Night, what thinks Boötes of them, as he leads his Hunting-Dogs over the Zenith in their leash of sidereal fire?
  2. Relating to a measurement of time relative to the position of the stars. not-comparable
    — Then, from a sufficient number of observations of synodic periods to give their mean, we obtain the sidereal period, or period with reference to the stars.
  3. Relating to a measurement of time relative to the point of the vernal equinox. not-comparable

词形变化

sideral alternative sidaereal alternative

词汇关系

衍生词
intersidereal nonsidereal sidereal astrology sidereal clock sidereal day sidereal hour sidereal hour angle siderealize sidereally sidereal midnight sidereal minute sidereal month sidereal noon sidereal orbital period sidereal period sidereal pole sidereal rotation period sidereal second sidereal table sidereal time sidereal year
相关词
consider desire

词源

From Latin sīdereus + -al (cf. Latin sīderālis), from sīdus (“star, constellation”), of unknown ultimate origin, likely a substrate language such as Pre-Greek.
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