Definition of rear vault
: a rear arch used where a wall is very thick and the window recess becomes a vaulted area
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Origin and Etymology of rear vault
5rear + vault (arched structure); translation of French arrière-voussure
Definition of rear vault
: 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
Origin and Etymology of rear vault
5rear + vault (leap)
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