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About Thesaurus and Glossary
  
What's New in 2018 Edition
 

The 2018 edition is the seventeenth edition of the National Agricultural Library Thesaurus; the first edition was released by the National Agricultural Library in 2002. Terminology are available in both English and Spanish versions. Taxonomic terms from every biological kingdom were expanded in this edition, along with common names of species. Plant species were added following taxonomic verification by the Germplasm Resources Information Network (GRIN). Semi-controlled vocabulary of the National Forest Service Library, USDA, was mapped to the NALT, and many forest and timber related terms are included in this edition. The Report of the International Committee on Taxonomy of Viruses (2016 release) was the authoritative reference for viruses new to this edition. Other subject areas expanded include terms in agricultural technology, cell biology, food sciences, chemistry, plant diseases, enzymes, health, pathology and geological time scales. The 2018 edition contains 396 new definitions, which appear in the thesaurus and separate glossary.


Please consult the list of new terms for this edition.

Thanks are extended to AgNIC members, IICA partners, Dr. Melanie Schori and Dr. John Wiersema at GRIN and to all those who proposed suggestions for changes to this edition. Users are encouraged to send us comments so that we may continue to improve this resource.

Statistics

  • English
    • Total Terms - 135,080
    • Lead-in Terms - 63,007
    • Preferred Terms - 72,073
    • Subject Categories - 17
    • Scope Notes - 758
    • Definitions - 5,618
  • Spanish
    • Total Terms - 110,092
    • Lead-in Terms - 38,019
    • Preferred Terms - 72,073
    • Subject Categories - 17
    • Scope Notes - 758
    • Definitions - 5,618
Last Modified: Jul 11, 2018
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About Thesaurus and Glossary
  What's New in 2018 Edition
    List of New Terms
    List of Replaced Descriptors
  Background and Applications
  Thesaurus Structure
  Acknowledgements
  Bibliography
 
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