periastron
periastron · periastrons · periastra
The point of an orbit in which a celestial body is at its closest to the star it is…The point of an orbit in which a celestial body is at its closest to the star it is orbiting.
/pɛɹɪˈæstɹən/
Meaning
1 sensesThe point of an orbit in which a celestial body is at its closest to the star it is orbiting.
Translations
1 languagesOrigin
From Ancient Greek περί (perí, “around”) + ἄστρον (ástron, “star”).From Ancient Greek περί (perí, “around”) + ἄστρον (ástron, “star”).
Wiktionary, CC BY-SA 4.0 · source
Forms
plural: periastrons / periastra| Singular | periastron |
|---|---|
| Plural | periastrons / periastra |
regular
Antonyms
1 antonymsWord family
1 related wordsRelatedperiapsis
Lessons for this word
1 lessons- A1Plural nouns — Because its plural is irregular