Petticoat /(?)/

Pet·ti·coat

Petticoat

n.
  1. A loose under-garment worn by women, and covering the body below the waist. (Zool.)

Phrases & Compounds
Petticoat government
government by women, whether in politics or domestic affairs.
Petticoat pipe
a short, flaring pipe surrounding the blast nozzle in the smoke box, to equalize the draft.