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Related to wagon vault: Cylindrical vault
wagon vault[′wag·ən ‚vȯlt]
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
barrel vault, barrel roof, cradle vault, tunnel vault, wagonhead vault, wagon vault
A masonry vault of plain, semicircular cross section, supported by parallel walls or arcades and adapted to longitudinal areas.
A semicylindrical vault; a barrel vault.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.