noun
: a semicylindrical vault having parallel abutments and the same section throughout ; also : a similar vault that is curved in plan or rampant — see vault illustration
noun
: a semicylindrical vault having parallel abutments and the same section throughout ; also : a similar vault that is curved in plan or rampant — see vault illustration
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012