'Petticoat' definitions:

Definition of 'petticoat'

From: WordNet
noun
Undergarment worn under a skirt [syn: petticoat, half- slip, underskirt]

Definition of 'Petticoat'

From: GCIDE
  • Petticoat \Pet"ti*coat\, n. (Zool.) [Petty + coat.] A loose under-garment worn by women, and covering the body below the waist. [1913 Webster]
  • Petticoat government, government by women, whether in politics or domestic affairs. [Colloq.]
  • Petticoat pipe (Locomotives), a short, flaring pipe surrounding the blast nozzle in the smoke box, to equalize the draft. [1913 Webster]