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pygidium (s) (noun), pygidia (pl)
1. The posterior or back part of the body in certain invertebrates, primarily insects, crustaceans, and worms, when forming a distinct segment or division.
2. Etymology: from New Latin which came from Greek pugidion; from puge, "rump".
This entry is located in the following units: -idium, -idion (page 2) pyg-, pygo-, -pyga, -pygia (page 2)
Word Entries at Get Words: “pygidium
pygidium
The last complete tergite (upper segmental plate) of the abdomen, regardless of its numerical designation.
This entry is located in the following unit: Ant and Related Entomology Terms (page 17)