from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Producing, carrying, or powered by a single alternating voltage.
from The Century Dictionary and Cyclopedia
- In electricity, noting a system of electric distribution by alternating currents produced by a single alternating electromotive force, in which therefore all the currents are in phase with each other, that is, reverse simultaneously in direction, or differ in phase only so far as is due to the different character of the circuits in which they flow.
Sorry, no etymologies found.