from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Magnetism produced by electric charge in motion.
- n. The physics of electricity and magnetism.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A unified fundamental force that combines the aspects of electricity and magnetism and is one of the four fundamental forces. (technically it can be unified with weak nuclear to form electroweak) Its gauge boson is the photon.
- n. Electricity and magnetism, collectively, as a field of study.
electro- + magnetism (Wiktionary)