1.scheme arch - an arch whose height is less than half its widthdiminished arch, skeen arch, skene archarch - (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it
scheme arch
scheme arch
An arch which forms part of a circle which is less than a semicircle.
scheme arch
noun
Synonyms for scheme arch
noun an arch whose height is less than half its width