periaster
/ˌpɛrɪˈastə/Astronomy rare
noun
= periastron.
Origin
Mid 19th century; earliest use found in John Pringle Nichol (1804–1859), astronomer and political economist. From peri- + ancient Greek ἀστήρ star, after perigee, perihelion, etc. Compare French périastre.
- countermarch
- countermark
- countermeasure
- countermelody
- countermine
- countermove
- countermovement
- counternarcotics
- counteroffensive
- counter-offer
- counterpane
- counterpart
- counterpart fund
- counterparty
- counterplot
- counterpoint
- counterpoise
- counterpose
- counterposition
- counterproductive
- counterproliferation
- counterproposal
- counterpunch
- counterpuncher
- Counter-Reformation