tuff

1
[ tuhf ]
/ tʌf /
|

adjective Slang.


Nearby words

  1. tuesday,
  2. tuesdays,
  3. tuf,
  4. tufa,
  5. tufaceous,
  6. tuffaceous,
  7. tuffet,
  8. tuffstone body,
  9. tuft,
  10. tufted

tuff

2
[ tuhf ]
/ tʌf /

noun Geology.

a fragmental rock consisting of the smaller kinds of volcanic detritus, as ash or cinder, usually more or less stratified.

Origin of tuff

2
1560–70; < French tuf < Italian tufo. See tufa

Also called volcanic tuff.

Related formstuff·a·ceous [tuh-fey-shuh s] /tʌˈfeɪ ʃəs/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for tuff


British Dictionary definitions for tuff

tuff

/ (tʌf) /

noun

a rock formed by the fusing together on the ground of small rock fragments (less than 2 mm across) ejected from a volcano
Derived Formstuffaceous (tʌˈfeɪʃəs), adjective

Word Origin for tuff

C16: from Old French tuf, from Italian tufo; see tufa

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for tuff

tuff

[ tŭf ]

A rock made up of particles of volcanic ash, varying in size from fine sand to coarse gravel.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.