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An official website of the United States government.

The .gov means it's official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you're on a .gov or .mil site by inspecting your browser's address (or "location") bar.

This site is also protected by an SSL (Secure Sockets Layer) certificate that's been signed by the U.S. government. The https:// means all transmitted data is encrypted - in other words, any information or browsing history that you provide is transmitted securely.

NAL Agricultural Thesaurus and Glossary

U.S. Department of Agriculture

light emitting diodes

Definition: A device that uses a material called a semi-conductor to produce light without using a lot of electricity. LEDs are commonly used as indicator lights on electrical devices, but they are now being used more often for general lighting.
Definition Source: US, Environmental Protection Agency
Spanish: diodos emisores de luz

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