Related Words

National Stock Exchange (NSE): Second-largest stock exchange based in India.

National Water Level Observation Network (NWLON): The network of tide and water level stations operated by the National Ocean Service along the marine and Great Lakes coasts and islands of the United States. The NWLON is composed of the pri . . . View Full Definition

National Weather Association (NWA): An organization whose membership promotes excellence in operational meteorology and related activities, recognizing the professional as well as the volunteer.

National Toxicology Program (NTP): Part of the Department of Health and Human Services. NTP develops and carries out tests to predict whether a chemical will cause harm to humans.

National Tidal Datum Epoch: The specific l9-year period adopted by the National Ocean Service as the official time segment over which tide observations are taken and reduced to obtain mean values (e.g., mean lower low . . . View Full Definition

National Television System Committee (NTSC): Refers to the standards used for video broadcast and playback signal parameters in the U.S. Japan and other countries. Alternative systems used in Europe and some Asian countries are PAL and SECAM.

National Tidal Datum Convention: Effective November 28, 1980, the Convention: (1) establishes one uniform, continuous tidal datum system for all marine waters of the United States, its territories, Commonwealth of Puerto Ri . . . View Full Definition

National Weather Service (NWS): A primary branch of the National Oceanic and Atmospheric Administration, it is responsible for all aspects of observing and forecasting atmospheric conditions and their consequences, includi . . . View Full Definition

National Wetland Inventory: An ongoing national survey of wetlands conducted by the Fish and Wildlife Service, primarily for scientific purposes. The data and maps it produces were used to track gains and losses of wet . . . View Full Definition

Nationals: The ABC and/or WIBC tournament.