Definition of "groin vault" []

• See cross vault. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Barrel vaults were occasionally used, groin vaults in innumerable cases; the groin vault with ribs first occurs in Durham in 1093, an astonishing date, since the earliest ribbed vault claimed for France is in the diminutive church of Rhuis, a structure the date of which is unknown, but is placed at about 1100."