Ppd

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

Read Also:

P.p.d.o.
1. per person, double occupancy.
PPE
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
Ppf
1. Insurance. personal property floater. plasma protein fraction