Real Dictionary

Romanesque
Romanesque architecture is in the style that was common in western Europe around the eleventh century. It is characterized by rounded arches and thick pillars.

Romanesque in American English
designating or of a style of European architecture of the 11th and 12th cent., based on the Roman and characterized by the use of the round arch and vault, thick, massive walls, interior bays, etc.
the Romanesque style of architecture, painting, etc.
adjective: noting or pertaining to the style of architecture prevailing in western or southern Europe from the 9th through the 12th centuries, characterized by heavy masonry construction with narrow openings, features such as the round arch, the groin vault, and the
noun: the Romanesque style of art or architecture

Romanesque in British English
adjective: denoting, relating to, or having the style of architecture used in W and S Europe from the 9th to the 12th century, characterized by the rounded arch, the groin vault, massive-masonry wall construction, and a restrained use of mouldings