Zool. the end division of the body of a trilobite or of certain annelids, crustaceans, or insects
Origin of pygidiumModern Latin from Classical Greek pygidion, diminutive of pyg?, rump from Indo-European base an unverified form pu-, to swell up from source pupa
The posterior body region or segment of certain invertebrates.
Origin of pygidiumNew Latin from Greek pugidion diminutive of pugē buttocks
(plural pygidia or pygidiums)
From New Latin pygidium, from Ancient Greek Ï€Ï…Î³Î® (pugÄ“, “tail")