Meaning of PERIAPSIS

WordNet Dictionary
	Definition:		[n]  (astronomy) the point in as orbit closest to the body being orbited
	Websites:
	Synonyms:		point of periapsis
	Antonyms:		apoapsis, point of apoapsis
	See Also:		celestial orbit, celestial point, orbit, perigee, perihelion, perijove, perilune, periselene