Definition of propodeum in US English:

propodeum

(also propodaeum)

noun

Entomology
  • The segment anterior to and partly surrounding the petiole of hymenopterans.

Origin

Mid 19th century; earliest use found in Edward Newman (1801–1876), naturalist. From pro- + ancient Greek ποδεών neck or mouth of a wineskin, or of the bladder, any narrow end.