Tuff
/tʌf/ adj, name, noun
adj, name, noun ·Rare ·Advanced level
Definitions
Noun
- 1 A light porous rock, now especially a rock composed of compacted volcanic ash varying in size from fine sand to coarse gravel. countable, uncountable
"This is what makes an ignimbrite; the general term for this kind of volcaniclastic rock is ‘tuff’."
- 2 hard volcanic rock composed of compacted volcanic ash wordnet
Adjective
- 1 Eye dialect spelling of tough. alt-of, ironic, often, pronunciation-spelling
"Tuff Stuff teaches that while life may go smoothly most of the time, ..."
Proper Noun
- 1 A surname.
Example
More examples"This is what makes an ignimbrite; the general term for this kind of volcaniclastic rock is ‘tuff’."
Etymology
From French tuffe, tuf, from Italian tufo, from Latin tōfus. Doublet of tufa.