Sidereal

Pronunciation: /saɪˈdɪəriəl/

Definitions of sidereal

adjective relating to or determined by the stars; astronomical

Example Sentences

A1 The sidereal day is the time it takes for a planet to complete one rotation on its axis.

A2 Sidereal time is based on the Earth's rotation relative to distant stars.

B1 A sidereal clock is used by astronomers to track the position of celestial objects.

B2 The sidereal period of a planet is the time it takes to complete one orbit around the sun relative to the fixed stars.

C1 A sidereal month is the time it takes for the moon to complete one orbit around the Earth relative to the stars.

C2 Sidereal astrology is based on the position of the planets and stars at the time of a person's birth.

Examples of sidereal in a Sentence

formal Astrologers use the sidereal zodiac to calculate the position of stars and planets.

informal I read my horoscope based on the sidereal zodiac and it was surprisingly accurate.

slang Let's check out our sidereal compatibility before going on a date.

figurative The artist's mind wandered through a sidereal landscape of creativity.

Grammatical Forms of sidereal

• past tense: siderealized
• plural: sidereals
• comparative: more sidereal
• superlative: most sidereal
• present tense: siderealizes
• future tense: will siderealize
• perfect tense: has siderealized
• continuous tense: is siderealizing
• singular: sidereal
• positive degree: sidereal
• infinitive: to siderealize
• gerund: siderealizing
• participle: siderealized

Origin and Evolution of sidereal

First Known Use: 1601 year

Language of Origin: Latin

Story behind the word: The word 'sidereal' comes from the Latin word 'sidereus', which means 'of or relating to the stars'.

Evolution of the word: Originally used in reference to stars, the word 'sidereal' has evolved to also describe things related to the stars or the constellations in astronomy and astrology.