lem leland stanford • lem- · · · Info · Definitions · Synonyms · Characters · · lem · · Text Latin · · Script 3 · · Length 1 · · Syllables Definitions · · · (noun) a spacecraft that carries astronauts from the command module to the surface of the moon and back. Synonyms: lunar excursion module, lunar module, LEM. · · Noun Definition 1 Synonyms · · · lunar excursion module · · Synonym 1 lunar module · · Synonym 2 Characters · · e latin small letter e U+0065 l latin small letter l U+006C m latin small letter m U+006D