Meanings
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1
noun
rock formed from compacted or cemented volcanic ash and other fine volcanic fragments
Layers of pale tuff around the crater recorded several explosive eruptions.
Thesaurus
Synonyms
1
noun
· rock formed from compacted...
volcanic tuff
Word family
Derived forms
tuffaceous
Related forms
volcanic ashtephraignimbrite
Etymology
Borrowed through Middle French tuf and Italian tufo from Latin tofus ("porous stone"). The modern geological sense names rock made chiefly from consolidated volcanic ash and other fine ejecta.