ˌlīkəˈpōdēəm noun
Etymology: New Latin, from lyc- + -podium
1. capitalized : a large genus (the type of the family Lycopodiaceae) of erect or creeping plants that have evergreen one-nerved leaves in four to many ranks and are often used in Christmas decorations — see club moss , ground fir , ground pine
2. or lycopodium powder : a fine yellowish flammable powder composed of the spores of a club moss (as Lycopodium clavatum ) and used as a dusting powder for the skin and for the surface of hand-rolled pills and as a component of fireworks and flashlight powders