from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A complete shift, as from one system to another.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A complete change or switch from one state, system or course of action to another
- n. A change to the use of a second system (of power etc) in the event of the failure of a main system
Sorry, no etymologies found.