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Definition of rear vault
(Entry 1 of 2)
: a rear arch used where a wall is very thick and the window recess becomes a vaulted area
rear vault
noun (2)Definition of rear vault (Entry 2 of 2)
: a vault in which the body is raised sideward to either right or left and then rotated a quarter turn outward so that the back of the body passes over the apparatus used
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