Definition of "voussoir" []

• One of the wedge-shaped stones forming the curved parts of an arch or vaulted ceiling. (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.

• "The newly carved architrave with projecting voussoir of the arch"
• "Stone carver Eva Leplat started carving in situ the decoration on the new voussoir."
• "The resulting joints of the arch are even more satisfactory than the trial with the plaster mold of the missing voussoir."