1. Postpartum depression. 2. Purified protein derivative (the PPD skin test for tuberculosis).

Postpaid.

Preplanned.

Post Party Depression, the low you feel after a good party, get together, or weekend with friends or family. When you go from having fun and all your friends to home alone or basically alone and you j [..]

PPD = Post Potter Depression The anxiety ridden period that Harry Potter fans will go through after the final movie is over. It is a mixture of happiness to have finally seen the movie and sadness tha [..]

Short form for postponed.

n. acronym for Profile Picture Disorder: when a Facebooker or MySpacer has an hourly or daily urge to change his/her profile picture.

Posts per Day used on message boards to show how many times the user posts each day, on average. Also commonly abbreviated as "p/d"

Post-Penile-Drip: When peeing at a urinal has finished, the man will then "tuck" himself back into his pants. When the first step away has commenced, an extra amount of pee will drip [..]

When a man is acting emotional and bitchy - just like a woman when she has her period

Personal Protection Drone.

The Published Price for Dealers is the wholesale record price paid by a retailer.

– purified protein derivative

Prepaid

Prepaid Charges

Public Protection Desk

Passenger Presence Detection; a sensor system that is able to detect the presence of a passenger. Different systems are known as Infrared Scanning Weight Sensing, Capacitive Measurement.

Primary Point Digitization. A proprietary (Roper Scientific) method of implementing electronic circuitry in high-performance CCD cameras to reduce read noise.

Presidential Policy Directive

Permanent Partial Disability

Prepaid

Purified Protein Derivative

abbreviation for purified protein derivative, which is pieces of TB bacteria

a skin test for tuberculosis in which PPD, which contains pieces of tuberculosis (TB) bacteria, is administered intradermally; if the person has been exposed to TB in the past, the immune system recognizes the bacteria and an induration appears where the PPD was injected (positive PPD); a positive PPD is an indication that the person needs further [..]

See PostScript Printer Description.

Pounds per day, a measure of pollutant emissions.

Prepaid

A credit or debit entry, initiated by a merchant, pursuant to a standing, or one time authorization from a consumer, to effect an electronic funds transfer, to or from a consumer's bank account.

See the entry for "Prearranged Payment and Deposit Entry (PPD)"

Pour Point Depressant