PG

(redirected from PG-13)
Also found in: Dictionary, Financial, Acronyms, Encyclopedia, Wikipedia.

picogram

 (pg) [pi´ko-gram]
one trillionth (10−12) of a gram.

prostaglandin

 [pros″tah-glan´din]
any of a group of naturally occurring, chemically related, long-chain hydroxy fatty acids that stimulate contractility of the uterine and other smooth muscle and have the ability to lower blood pressure, regulate acid secretion of the stomach, regulate body temperature and platelet aggregation, and control inflammation and vascular permeability. They also affect the action of certain hormones. First found in semen, they have since been found in cells throughout the body and in menstrual fluid. There are nine types, designated by the letters A to I, the degree of saturation of the side chain of each being designated by subscripts 1, 2, and 3.

Prostaglandins are used clinically to control postpartum hemorrhage, to temporarily manage patent ductus arteriosus, and to treat impotence in men; prostaglandin injections into the amniotic sac, an in-hospital procedure, have been used as an abortion technique in pregnancies after the 16th week. About 30 minutes after an injection of prostaglandin F, contractions begin, and abortion takes place within 19 to 20 hours.

PG

Abbreviation for prostaglandin; phosphatidylglycerol; protegrin.

pg

Symbol for picogram.

pg

picogram.

PG

abbreviation for prostaglandin.

PG

1. Postgraduate.
2. Prostaglandin, see there.
3. Proteoglycan.

pg

Abbreviation for picogram.

PG

prostaglandin.

pg

picogram.
References in periodicals archive ?
From 201 Oto 2016, the total number of tobacco incidents in top-grossing movies increased, with a 43% increase occurring among movies rated PG-13.
For example, the 1990 movie Die Hard 2 was rated R, but it contained less gun violence than the 2007 movie Live Free or Die Hard that was rated PG-13.
The coefficient on our linear time trend indicates that there has been a "ratings creep" in the assignment of movies to the PG-13 and R categories.
Fantasy and sci-fi movies with tobacco imagery, 2012-2014 Lockout 2012 PG-13 AMC/Regal Jurassic Park (3D) 2013 PG-13 Comcast Oblivion 2013 PG-13 Comcast Iron Man 3 2013 PG-13 Disney The Wolverine 2013 PG-13 Fox X-Men: Days of Future Past 2011 PG-13 Fox The Quiet Ones 2011 PG-13 Lionsgate Ghost Rider .
Median MSE from PG-13 movies was approximately three times higher than median MSE from R-rated films but their relation to smoking was essentially the same.
PG-13 for crude and sexual content, and for language including a drug reference.
Wouldn't a parent like to know, for example, that it took a film nine times to get its PG-13 rating?
You might think it's safe to take a young child to see a PG or PG-13 rated movie.
Often, parents outlaw all PG-13 flicks, thinking every single one contains way objectionable stuff.
PG-13 movies haven't been this controversial since middle school.
As such, the ratings--G, PG, PG-13, R and NC-17--and the accompanying descriptors (short, often unintentionally hilarious haikus describing the potentially objectionable content) are merely signposts, indicating what the average American parent would deem acceptable for their children to see.
But bosses at Summit Entertainment are adamant the film will clear the censors and be awarded a family-friendly PG-13 rating.