The Collaborative International Dictionary
LEM \LEM\, LEM \L.E.M.\n. [acronym from Lunar Excursion Module.] (Astronautics) A lunar excursion module, a spacecraft designed to transport people from a command module in orbit around the moon to the surface of the moon and back again.
Syn: lunar excursion module, lunar module.
WordNet
n. a spacecraft that carries astronauts from the command module to the surface of the moon and back [syn: lunar module, LEM]
Usage examples of "lunar excursion module".
You see I was born at the exact instant that the Lunar Excursion Module of Apollo 11 touched down on the moon.
Our mission called for two members of the crew to descend to the lunar surface in the LM - the lunar excursion module we called it - while the third crew member remained in lunar orbit, tending to the command module's systems and relaying communications from Houston.
When the Lunar Excursion Module failed to depart the Moon's surface, the whole world was treated to a protracted tragedy that soured any technological optimism left intact by the Vietnam War and the growing awareness of mankind's pollution of his environment (cf.