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Noun: periapsis (periapses)
  1. (astronomy) the point in an orbit closest to the body being orbited
    - point of periapsis

Derived forms: periapses

Type of: celestial point

Antonym: apoapsis

Part of: celestial orbit, orbit

Encyclopedia: Periapsis

Nearest

perfuse
perfusion
Pergamon
Pergamum
pergola
perhaps
peri
Periactin
perianal
perianth
periapsis
periapt
periarterial plexus
periarteritis
periarteritis nodosa
periastron
Pericallis
Pericallis cruenta
Pericallis hybrida
pericardiac
pericardial