n. [ Gr. me`ros thigh + poy`s, podo`s, foot. ] (Zool.) The fourth joint of a typical appendage of Crustacea. [ 1913 Webster ]
n. [ Gr. me`ros part + Sporozoa. ] (Zool.) A form of spore, usually elongate or falciform, and somewhat amoeboid, produced by segmentation of the schizonts of certain Sporozoa, as the malaria parasite. [ Webster 1913 Suppl. ]