English Explanatory Dictionary

sidereal

English dictionary entry

Meanings

adj
  1. Of or relating to the stars.
  2. Relating to a measurement of time relative to the position of the stars.
  3. Relating to a measurement of time relative to the point of the vernal equinox.

Pronunciation

/saɪˈdɪə.ɹi.əl/ /saɪˈdɪɚ.i.əl/ /sɪˈdɪɚ.i.əl/ en-us-sidereal.ogg en-us-sidereal_2.ogg

Word forms

sidereal sideral sidaereal

Etymology

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

Related words

consider desire

Derived words

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
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