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hornstone
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| hornswoggle
| horntail
| hornwork
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hornstone
WORDNET DICTIONARY
Noun hornstone has 1 sense
- hornstone(n = noun.substance) hornfels - a fine-grained metamorphic rock formed by the action of heat on clay rocks; Array is a kind of metamorphic rock
CIDE DICTIONARY
hornstone, n.
A siliceous stone, a variety of quartz, closely resembling flint, but more brittle; -- called also chert . [1913 Webster]
For further exploring for "hornstone" in Webster Dictionary Online
