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Meaning of lunar module

lu'nar mod'ule

Pronunciation: [key]
— U.S. Aerospace. (often cap.)U.S. Aerospace.
  1. the portion of the Apollo spacecraft in which two astronauts landed on the moon's surface and then returned to the orbiting command module. Also calledAbbr.: LM
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.