Definition of knee breeches in English:

knee breeches

plural noun

archaic
  • Short trousers worn by men and fastened at or just below the knee.

    • ‘Although aristocrats tended to favor powdered hair and tight-fitting knee breeches in the old style, most middle-class men wore trousers or pantaloons and kept their hair in a natural style.’
    • ‘He wore a tall black hat trimmed with gold braid, a black swallow tail coat with a white silk lining, white knee breeches and black, silver buckled shoes.’
    • ‘Visiting Americans have always found it rather charming that public buildings are guarded by a man dressed in knee breeches and silk stockings armed with a sword, rather than a burly soldier in full body armour carrying an assault rifle.’