WordReference Random House Unabridged Dictionary of American English © 2026
sur•based
(sûr′bāst′),USA pronunciation adj. [Archit.]
- Architecturehaving a surbase.
- Architecturedepressed;
flattened. - Architecture(of an arch) having a rise of less than half the span.
- 1755–65; sur-1 + (a)based lowered; modeled on French surbaissé, equivalent. to sur- (intensive) + baissé lowered
'surbased' also found in these entries (note: many are not synonyms or translations):