1. making three identical copies of something
Usage: present participle of triplicate

Examples

• The secretary is triplicating all the important documents.
• We are triplicating the forms for distribution to three departments.
• The office manager spent the morning triplicating the contracts.
• They are triplicating the receipts for accounting purposes.
• The clerk is triplicating the invoices before filing them.
• She is triplicating the medical records as required by law.