1. A stiff fabric with a ribbed surface, typically made of wool or cotton, used for stiffening garments or as a decorative trim.
Usage: chiefly British; often used in tailoring and millinery
2. A heavy overcoat or greatcoat, typically made of wool.
Usage: chiefly British; dated

Examples

• The dressmaker used petersham to reinforce the waistband of the skirt.
• A petersham ribbon was sewn into the hat to add structure and elegance.
• The tailor selected petersham for the collar of the formal jacket.
• She wore a warm petersham coat during the cold winter months.
• The petersham trim gave the dress a polished, professional appearance.