sidereal

Pronunciation: /saɪˈdɪə.ɹi.əl/

The English word “sidereal” has 3 meanings listed here.

adjective

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

Etymology

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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More English words

siderate
siderated
sideration
siderazote
sidereal astrology
sidereal day
sidereal month
sidereal orbital period

About this dictionary

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.