Usually means: Relating to stars; astronomical time measurement.
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We found 33 dictionaries that define the word Sidereal:

General (26 matching dictionaries)
  1. sidereal: Merriam-Webster
  2. sidereal: Oxford Learner's Dictionaries
  3. sidereal: American Heritage Dictionary of the English Language
  4. sidereal: Collins English Dictionary
  5. sidereal: Vocabulary.com
  6. Sidereal, sidereal: Wordnik
  7. sidereal: Cambridge Advanced Learner's Dictionary
  8. sidereal: Wiktionary
  9. sidereal: Webster's New World College Dictionary, 4th Ed.
  10. sidereal: The Wordsmyth English Dictionary-Thesaurus
  11. sidereal: Infoplease Dictionary
  12. sidereal: Dictionary.com
  13. sidereal: Online Etymology Dictionary
  14. Sidereal: Wikipedia, the Free Encyclopedia
  15. Sidereal: Online Plain Text English Dictionary
  16. sidereal: Webster's Revised Unabridged, 1913 Edition
  17. sidereal: Rhymezone
  18. Sidereal: AllWords.com Multi-Lingual Dictionary
  19. sidereal: Webster's 1828 Dictionary
  20. sidereal: FreeDictionary.org
  21. sidereal: The Phrontistery - A Dictionary of Obscure Words
  22. sidereal: Mnemonic Dictionary
  23. sidereal: TheFreeDictionary.com
  24. sidereal: Wikimedia Commons US English Pronunciations

Business (1 matching dictionary)
  1. sidereal: Legal dictionary

Computing (1 matching dictionary)
  1. sidereal: Encyclopedia

Medicine (1 matching dictionary)
  1. online medical dictionary (No longer online)

Miscellaneous (1 matching dictionary)
  1. sidereal: A Word A Day

Science (2 matching dictionaries)
  1. Sidereal: Extragalactic Astronomy
  2. sidereal: Nine Planets Glossary

Tech (1 matching dictionary)
  1. SOLAR-TERRESTRIAL TERMS (No longer online)

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Definitions from Wiktionary (sidereal)

▸ adjective:  Of or relating to the stars.
▸ adjective:  (astronomy) Relating to a measurement of time relative to the position of the stars.
▸ adjective:  (astronomy) Relating to a measurement of time relative to the point of the vernal equinox.

Similar:
sideral, stellar, astral, starly, celestial, heavenish, constellationary, sidereous, astromantic, constellational, more...

Opposite:
tropical, non-sidereal, non-astronomical

Phrases:
sidereal time, sidereal day, sidereal period, sidereal year, sidereal month, more...

Adjectives:
mean, apparent, local, tropical, solar, great, planetary, more, cosmical, 20h

Colors:
    midnight blue,     cosmic latte,     starlight silver,     nebula purple,     celestial blue, more...
▸ Word origin

▸ Words similar to Sidereal

▸ Usage examples for Sidereal

▸ Idioms related to Sidereal

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▸ Popular nouns described by Sidereal

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▸ Rhymes of Sidereal

▸ Invented words related to Sidereal

Similar:
sideral, stellar, astral, starly, celestial, heavenish, constellationary, sidereous, astromantic, constellational, more...

Opposite:
tropical, non-sidereal, non-astronomical

Phrases:
sidereal time, sidereal day, sidereal period, sidereal year, sidereal month, sidereal clock, sidereal days, sidereal hour, sidereal periods, sidereal hours, sidereal years, sidereal months, sidereal times, more...

Adjectives:
mean, apparent, local, tropical, solar, great, planetary, more, cosmical, 20h

Colors:
    midnight blue,     cosmic latte,     starlight silver,     nebula purple,     celestial blue, more...



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