What does Sidereal mean?

Definitions for Siderealsaɪˈdɪər i əl

Here are all the possible meanings and translations of the word Sidereal.

Princeton's WordNet

  1. sidereal(adj)

    of or relating to the stars or constellations

    "sidereal bodies"; "the sidereal system"

  2. sidereal(adj)

    (of divisions of time) determined by daily motion of the stars

    "sidereal time"


  1. sidereal(Adjective)

    Of or relating to the stars.

  2. sidereal(Adjective)

    Relating to a measurement of time relative to the position of the stars.

  3. Origin: sidereus, from sidus, sider-, star

Webster Dictionary

  1. Sidereal(adj)

    relating to the stars; starry; astral; as, sidereal astronomy

  2. Sidereal(adj)

    measuring by the apparent motion of the stars; designated, marked out, or accompanied, by a return to the same position in respect to the stars; as, the sidereal revolution of a planet; a sidereal day

  3. Origin: [L. sidereus, from sidus, sideris, a constellation, a star. Cf. Sideral, Consider, Desire.]

Chambers 20th Century Dictionary

  1. Sidereal

    sī-dē′rē-al, adj. relating to a star or stars: starry: (astron.) measured by the apparent motion of the stars.—adj. Sid′eral (Milt.), relating to the stars: baleful, from astrology.—n. Siderā′tion, a sudden deprivation of sense, as a stroke of apoplexy: a blast of plants.—Sidereal day, the time between two successive upper culminations of a fixed star or of the vernal equinox, shorter than a solar day; Sidereal year (see Year). [L. sidus, sideris, a star.]


  1. Chaldean Numerology

    The numerical value of Sidereal in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of Sidereal in Pythagorean Numerology is: 1

Images & Illustrations of Sidereal

  1. SiderealSiderealSidereal

Translations for Sidereal

From our Multilingual Translation Dictionary

Get even more translations for Sidereal »


Find a translation for the Sidereal definition in other languages:

Select another language:

Discuss these Sidereal definitions with the community:

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:     


Use the citation below to add this definition to your bibliography:


"Sidereal." Definitions.net. STANDS4 LLC, 2017. Web. 23 Nov. 2017. <http://www.definitions.net/definition/Sidereal>.

Are we missing a good definition for Sidereal? Don't keep it to yourself...

Nearby & related entries:

Alternative searches for Sidereal:

Thanks for your vote! We truly appreciate your support.