WordReference Random House Unabridged Dictionary of American English © 2026
flat′ arch′, [Archit.]
  1. Architecturean arch having a more or less flat intrados and extrados with voussoirs radiating from a center below the arch. See illus. under arch. Also called jack arch. 
  • 1705–15

'flat arch' also found in these entries (note: many are not synonyms or translations):
accolade - camber piece - French arch - jack arch - platband

Forum discussions with the word(s) "flat arch" in the title:


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