1. . 2. prepaid. abbreviation 1. post-paid 2. prepaid PPD abbr. purified protein derivative of tuberculin Parallel Presence Detect purified protein derivative (of tuberculin) 1. postpaid 2. prepaid
1. per person, double occupancy.
British. 1. philosophy, politics, and economics. abbreviation 1. philosophy, politics, and economics: a university course 2. personal protective equipment: clothing and equipment used to ensure personal safety in the workplace Personal Protection Equipment
1. Insurance. personal property floater. plasma protein fraction