EPA: Terminology Reference System
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Terminology Reference System
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Welcome to the Terminology Reference System

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The Terminology Reference System (TRS) has been created as a single resource of environmental terminology for the Agency by compiling collections of terms from EPA and other sources.

Click on a letter/number below to retrieve a list of all terms beginning with that letter or number. Other ways to query TRS information may be found on the Search page.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9 0

Enter a keyword (e.g., pollution) or text string (e.g., regulated substance) to search either a term or definition.

Keyword: 
Search Options:  Containing  Beginning With  Exact Match
Selection Options:  Term Only Definition Only Term or Definition


When the user selects "Term or Definition," the query performs a "Containing" search only.



Please read the SoR Disclaimer for the Terminology Reference System. The Introduction and Help pages provide information to assist in understanding and using the TRS.

 

 
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Last updated on Friday, March 26th, 2004 TRS Version 2003
URL: http://www.epa.gov/trs/