propodeum
From ZooTerms (Dictionary of Invertebrate Zoology)
propodeum (noun; Greek pro, before; podeon, neck): (Arthropoda: Insecta) 1. In apocrite Hymenoptera the fused first abdominal segment; median segment; propodeon also used
See also: alitrunk. 2. For Formicidae, a synonym for epinotum.
