A millicede is a type of small, segmented arthropod belonging to the class Diplopoda, commonly known as millipedes. They are characterized by having two pairs of legs per body segment, which gives them a distinctive, cylindrical appearance. Millicedes are primarily decomposers, feeding on decaying plant material, and are typically found in moist environments. Unlike centipedes, they are not venomous and are generally harmless to humans.