sidereal

Meaning

  1. (not-comparable) Of or relating to the stars.
  2. (not-comparable) Relating to a measurement of time relative to the position of the stars.
  3. (not-comparable) Relating to a measurement of time relative to the point of the vernal equinox.

Pronounced as (IPA)
/saɪˈdɪə.ɹi.əl/
Etymology

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

Notes

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