- a vault, having a circular plan and usually in the form of a portion of a sphere, so constructed as to exert an equal thrust in all directions.
- a domical roof or ceiling.
- a polygonal vault, ceiling, or roof.
verb (used with object), domed, dom·ing.
verb (used without object), domed, dom·ing.
- domagk, gerhard,
- domain name,
- dome car,
- dome fastener,
- dome light,
- dome of the rock,
- dome top
Origin of dome
- a structure in which rock layers slope away in all directions from a central point
- another name for pericline (def. 2)
Word Origin for dome
"round, vaulted roof," 1650s, from French dome (16c.), from Provençal doma, from Greek doma "house, housetop" (especially a style of roof from the east), related to domos "house" (see domestic).
In the Middle Ages, German dom and Italian duomo were used for "cathedral" (on the notion of "God's house"), so English began to use this word in the sense "cupola," an architectural feature characteristic of Italian cathedrals. Used in U.S. also with reference to round summits of mountains.