'Pinafore' definitions:

Definition of 'pinafore'

From: WordNet
noun
A sleeveless dress resembling an apron; worn over other clothing [syn: jumper, pinafore, pinny]

Definition of 'Pinafore'

From: GCIDE
  • Pinafore \Pin"a*fore`\, n. [Pin + afore.] An apron for a child to protect the front part of dress; a tier. [1913 Webster]