Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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noun
Any of a series of contact metamorphic rocks that have been baked and indurated by the heat of intrusive igneous masses and rendered massive, hard, splintery, and in some cases exceedingly tough and durable.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
a fine-grained metamorphic rock formed by the action of heat on clay rocks
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: hornstone
Antonyms: none provided
Broader terms: metamorphic rock
History
Borrowed from German Hornfels, literally "horn stone", after its frequent association with glacial "horn peaks" in the Alps.
Across languages
6 source translations are retained for this English entry.
