ring stone

noun

1. a voussoir appearing on a face of an arch.

Example Sentences

As they stopped at the ring-stone, between the byre and the cottage, he went up to the shepherd.

From Project Gutenberg

A true topaz crystal was too hard for the ring stone, whose edge slipped over the smooth topaz surface.

From Project Gutenberg

Of course, such a change is far more likely to occur to a ring stone than to a turquoise mounted in some more protected situation.

From Project Gutenberg

The scarabaeoid in its turn is abandoned for the simple ring stone.

From Project Gutenberg