Terms by letter

All terms | 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

radio spectrum

The complete range of frequencies or wave lengths of electromagnetic waves, specifically those used in radio and television. Source: NASA (http://earthobservatory.nasa.gov/Glossary)