onion dome
noun Architecture.
a bulbous, domelike roof ending in a sharp point, characteristically used in Russian Orthodox church architecture to cover cupolas or towers.
Origin of onion dome
First recorded in 1955–60
Words nearby onion dome
oni,
onie,
onigiri,
oniomania,
onion,
onion dome,
onion fly,
onion rings,
onion snow,
onion weed,
onions
British Dictionary definitions for onion dome
onion dome
noun
a bulb-shaped dome characteristic of Byzantine and Russian church architecture