PERIASTRON

Etymology

Noun

periastron (plural periastrons)

(astronomy) That point of the orbit of a celestial body which is closest to the star around which the body is orbiting.

Antonyms

• apastron

Anagrams

• Pretorians, patroniser, portainers, pretorians

Source: Wiktionary


Per`i*as"tron, n. Etym: [NL., fr. Gr. (Astron.)

Definition: That point, in the real or apparent orbit of one star revolving around another, at which the former is nearest to the latter.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

2 April 2025

COVERT

(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”


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