from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Electricity Two-phase.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Differing in phase by a quarter of a cycle; two-phase.
from The Century Dictionary and Cyclopedia
- In electricity, pertaining to a system of electrical distribution in which two alternating currents are used which differ in phase by a quarter of a period, so that, at equal intervals of time, first the first current reverses its direction, then the other, then again the first, and so on.
quarter- + phase (Wiktionary)