a. Rom. Antiq. [f. L. amburbiāl-is of the amburbi-um or expiatory procession round the city, f. amb- about + urbi- (urbs) city: see -AL 1.] lit. Connected with the circuit of a city; hence, Of or pertaining to the expiatory procession round the city of Rome.
1656. Blount, Glossogr., Amburbial, that goes about the city. Amburbial Sacrifices were, when the beast went about the City before he was sacrificed.
1731. in Bailey.