| pg | <abbreviation> Prostaglandin Symbol for picogram. Abbreviations, with numerical subscripts according to structure, often used for prostaglandins. Letters A, B, etc. Indicate the nature of the cyclopentane ring (substituents, double bonds, orientation); numerical subscripts indicate the number of double bonds in the alkyl chains. (05 Mar 2000) |
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| pg/ml | <abbreviation> For picograms per millilitre. (27 Sep 1997) |
| pgl | A condition common in people with HIV in which multiple lymph glands are swollen for a long period of time. (09 Oct 1997) |
| PGR | <abbreviation> Psychogalvanic response. (05 Mar 2000) |