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Lanthanum manganite (LaMnO3), an inorganic compound •
Lithium ion manganese oxide battery (LiMn2O4, etc., or LMO), a cathode material for lithium-ion batteries •
Lithium molybdate (Li2MoO4), an inorganic compound •
Living modified organism or genetically modified organism •
Lunar magma ocean, layer of molten rock theorized to have been present on the surface of the Moon ==Other uses==