The data from the SMPS measurements were curve fitted using a commercial software package that assumed a log-normal distribution and determined the mean particle size and

**geometric standard deviation**.This definition appears rarely and is found in the following Acronym Finder categories:

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We have 123 other **meanings of SDg** in our Acronym Attic

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- Superficial Digital Flexor Tendon (equine medicine)
- Silver Dragon Forums United
- South Dakota Farmers Union
- Switch Disconnector Fuse Unit
- San Diego Flash Users Group
- Scuba Divers Federation of Victoria (Australia)
- School of Drama, Film and Visual Arts (University of Kent, UK)
- Standard Dual Frame Window
- San Diego Fine Woodworkers Association (California)
- Scottish Diabetes Framework Working Group (National Health Service; UK)

- Sacred Dance Guild (Severna Park, MD)
- Sagittarius Dwarf Galaxy (astronomy)
- Sample Delivery Group
- Sapporo Designer Gakuin (Sapporo, Japan)
- Saratoga Drama Group (California community theater)
- SAS Data Group
- School Development Grant (various organizations)
- Screen Directors Guild
- Secoisolariciresinol Diglycoside (the main lignan in flaxseed)
- Short Duration Grazing

The data from the SMPS measurements were curve fitted using a commercial software package that assumed a log-normal distribution and determined the mean particle size and **geometric standard deviation**.

The easily obtainable variables were grouped as (1) particle size distribution, bulk density, and gypsum content; and (2) bulk density, gypsum content, geometric mean, and **geometric standard deviation** of the particle diameter.

8 Wash pesticide application clothes Yes No Abbreviations: GM, geometric mean; GSD, **geometric standard deviation**.

Because the data were log normally distributed, geometric mean (GM) and **geometric standard deviation** (GSD)--rather than arithmetic mean and standard deviation--were used to describe central tendencies and variability.

The errors in the Japanese dose estimates are thought to be log-normal with a **geometric standard deviation** of about 30% (Jablon 1971); the dosimetric errors in the radiation workers are of the same order (Kite and Britcher 1996).