Lunar Orbiter: Meaning and Definition of

Lu'nar Or'biter

Pronunciation: [key]
— U.S. Aerospace. U.S. Aerospace.
  1. one of a series of space probes that orbited and photographed the moon in 1966 and 1967.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.