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volcanic tuff
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Word History and Origins
Origin of volcanic tuff1
First recorded in 1805–15
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Example Sentences
Tuff, tuf, n. generally volcanic tuff, the name given to the comminuted rock-dbris ejected from a volcanic orifice.
From Project Gutenberg
At one place I noticed an Indian trail leading up a ridge apparently consisting of volcanic tuff.
From Project Gutenberg
It grows here and there in groups at high altitudes, on decomposed volcanic tuff.
From Project Gutenberg
The great mass of the surface of the mountain, not specially mentioned above, is volcanic tuff.
From Project Gutenberg
The Tank Site specimens range through volcanic tuff, siliceous sinter, escoriated basalt, to a fine-grained basalt.
From Project Gutenberg
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