English edit

Noun edit

cycloidal arch (plural cycloidal arches)

  1.  
    Cycloidal curve, as used in an arch.
    (architecture) An arch that has a cycloidal shape, wherein the span of the arch is some factor of pi*rise.

References edit

  • Sturgis, Russel. Cycloidal arch, in A Dictionary of Architecture and Building, Biographical, Historical,... MacMillan Co.:1901.[1]