We found 28 dictionaries that define the word electromagnetic wave:

General (15 matching dictionaries)

1. electromagnetic wave: Merriam-Webster
2. electromagnetic wave: American Heritage Dictionary of the English Language
3. electromagnetic wave: Collins English Dictionary
4. electromagnetic wave: Vocabulary.com
5. electromagnetic wave: Wiktionary
6. electromagnetic wave: The Wordsmyth English Dictionary-Thesaurus
7. electromagnetic wave: Infoplease Dictionary
8. electromagnetic wave: Dictionary.com
9. Electromagnetic wave: Wikipedia, the Free Encyclopedia
10. electromagnetic wave: Rhymezone
11. electromagnetic wave: FreeDictionary.org
12. electromagnetic wave: Mnemonic Dictionary
13. electromagnetic wave: TheFreeDictionary.com

Art (1 matching dictionary)

14. English-Chinese Dictionary of Graphic Communications (Big 5) (No longer online)

Computing (2 matching dictionaries)

15. electromagnetic wave: CCI Computer
16. electromagnetic wave: Encyclopedia

Medicine (3 matching dictionaries)

17. electromagnetic wave: Merriam-Webster Medical Dictionary
18. online medical dictionary (No longer online)
19. electromagnetic wave, wave, electromagnetic: Medical dictionary

Science (5 matching dictionaries)

20. From Stargazers to Starships Glossary (No longer online)
21. Electromagnetic Wave: Eric Weisstein's World of Physics
22. Electromagnetic Wave: Extragalactic Astronomy
23. Atmospheric Chemistry and Air Quality (No longer online)
24. Accelerator Glossary (No longer online)

Tech (2 matching dictionaries)

25. electromagnetic wave: Electronics
26. Glossary of Meteorology (No longer online)

(Note: See electromagnetic_waves as well.)

Definitions from Wiktionary (electromagnetic wave) ▸ noun:  (physics) Electromagnetic radiation, such as light and radio waves. Similar: electromagnetic radiation, light wave, radio energy, radioelectricity, radio wave, electromagnetic spectrum, electromagnetic energy, lightwave, light, gamma radiation, more... Opposite: mechanical wave, acoustic wave, pressure wave Types: radio wave, microwave, infrared, visible light, ultraviolet, x-ray, gammray, more... Phrases: Electromagnetic wave equation, Monochromatic electromagnetic plane wave, Sinusoidal plane-wave solutions of the electromagnetic wave equation, Inhomogeneous electromagnetic wave equation, more... ▸ Words similar to electromagnetic wave ▸ Usage examples for electromagnetic wave ▸ Idioms related to electromagnetic wave ▸ Wikipedia articles (New!) ▸ Words that often appear near electromagnetic wave ▸ Rhymes of electromagnetic wave ▸ Invented words related to electromagnetic wave