from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A pointed bulbous domelike roof, used especially in parts of Russia and eastern Europe.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An onion-shaped dome, characteristic of august buildings in Moghul and Russian architecture
from the GNU version of the Collaborative International Dictionary of English
- n. A dome with a pointed top, its width often extending beyond the width of the tower it covers; -- a style of architecture characteristic of Russian Orthodox churches.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a dome that is shaped like a bulb; characteristic of Russian and Byzantine church architecture
Sorry, no etymologies found.
There are companies in Portugal that make beautiful copper stills, hand-hammered pieces of sculpture like the onion dome on an Orthodox church.