Word Pronunciation & Dictionary

sidereal

/saɪˈdɪɚ.i.əl/

Word Rarity Very rare

Frequency: Zipf frequency 2.21 in modern English

Syllables: side-re-al
IPA: /saɪˈdɪɚ.i.əl/

9

Scrabble Score

8

Letters

3

Syllables

7

Unique Chars

Meaning

adj

Of or relating to the stars.

adj

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

adj

Relating to a measurement of time relative to the point of the vernal equinox.

Example Sentences

"These fringes of lamplight, struggling up through smoke and thousandfold exhalation, some fathoms into the ancient reign of Night, what thinks Boötes of them, as he leads his Hunting-Dogs over the Zenith in their leash of sidereal fire?"
"The field of sidereal astronomy, therefore, was virtually untrodden when, shortly after the beginning of his telescopic work, Herschel began his first review of the heavens."
"Then, from a sufficient number of observations of synodic periods to give their mean, we obtain the sidereal period, or period with reference to the stars."

Etymology

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

Origin

Source language: Latin

Word Breakdown

Root: sīdereus
Suffix: -al

Regional Pronunciation

American English: /saɪˈdɪɚ.i.əl/
British English: /saɪˈdɪə.ɹi.əl/

Inflected Forms

sideral (alternative) sidaereal (alternative)

Derived Forms

intersidereal nonsidereal siderealize sidereally

Phrases

sidereal astrology sidereal clock sidereal day sidereal hour sidereal hour angle sidereal midnight sidereal minute sidereal month

Frequently Paired Words

consider desire

Questions

How do you pronounce sidereal?: The recorded pronunciation is /saɪˈdɪɚ.i.əl/.
What does sidereal mean?: Of or relating to the stars.
Where does sidereal come from?: It is traced to Latin.

How to pronounce sidereal

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Read the phonetic spelling — Read the IPA spelling (/saɪˈdɪɚ.i.əl/) so you know which sounds to aim for.
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