USDA's National Agricultural Library Releases 2011 Edition of Thesaurus
"The U.S. Department of Agriculture's National Agricultural Library (NAL) has released the 2011 edition of the on-line NAL Agricultural Thesaurus and Glossary (NALT), which adds 3,441 new terms and 321 definitions.

Terminology in the new edition has been especially expanded in areas associated with nanotechnology, food safety risk assessment and sustainable agriculture.

Among the terms added are:

*Quantum dots — Nanometer-sized fragments (30 nm to 1 micron) of semiconductor crystalline material that holds a discrete number of electrons and emits photons. The number of electrons can be altered by modifying the electrostatic environment of the dot.

*Fomites — Inanimate objects that carry pathogenic microorganisms and can serve as the source of infection. Microorganisms typically survive on fomites for minutes or hours. Common fomites include clothing, tissue paper, hairbrushes, and cooking and eating utensils.

*Ecolabeling — A symbol, graphic or statement that appears on products or their packaging to convey an environmental aspect of that product to the consumer.

The thesaurus and glossary are primarily used for indexing and for improving the retrieval of agricultural information, but they can also be used by students—from fifth-grade up—teachers, writers, and others who are seeking precise definitions of words from the agricultural sciences..."