fortification agate ExamplesWord Origin noun
- an agate, used as a gem, having polygonal banding such that it suggests the plan of a bastion.
Origin of fortification agate First recorded in 1880–85 Examples from the Web for fortification agate Historical Examples of fortification agate
Sometimes they are arranged in angles, presenting the fortification-agate.
Scenes and Adventures in the Semi-Alpine Region of the Ozark Mountains of Missouri and Arkansas
Henry Rowe Schoolcraft