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Definitions

sidereal

[sahy-deer-ee-uhl] / saɪˈdɪər i əl /
ADJECTIVE
astral
Synonyms




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

And Sideræl — pronounced “sigh-deer-ee-el” — is “a more elven” spelling of sidereal, “the true time of the universe, star time, deep space time, not our relative earth time,” she explained.

From Seattle Times • Mar. 27, 2023

I mean, it still feels like fall, by the rhythm of the sidereal calendar I had imprinted in me by Sid and Marty Krofft.

From New York Times • Sep. 6, 2022

Mr Beck, Rocket Lab’s wise man, has taken it upon himself to create his own sidereal epiphany.

From The Guardian • Jan. 29, 2018

However, astronomers also use a sidereal day, which is defined in terms of the rotation period of Earth with respect to the stars.

From Textbooks • Oct. 13, 2016

That’s where Mercer’s triumph manifests itself, there at the end of the great sidereal cycle.

From "Do Androids Dream of Electric Sheep?" by Philip K. Dick