Definition of subarcuation in English:

subarcuation

noun

Architecture
  • The construction of two or more subordinate arches under a main arch; an arrangement of such arches.

Origin

Mid 19th century. From sub- + arcuation. Compare subarcuated, and earlier sub-arch.

Pronunciation

subarcuation

/ˌsʌbɑːkjʊˈeɪʃn/