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Definition of Hornstone
1. Noun. A fine-grained metamorphic rock formed by the action of heat on clay rocks.
Definition of Hornstone
1. n. A siliceous stone, a variety of quartz, closely resembling flint, but more brittle; -- called also chert.
Definition of Hornstone
1. [n -S]
Medical Definition of Hornstone
1.
Lexicographical Neighbors of Hornstone
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