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tuff

noun \ˈtəf\

Definition of TUFF

:  a rock composed of the finer kinds of volcanic detritus usually fused together by heat
— tuff·a·ceous \ˌtə-ˈfā-shəs\ adjective
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Origin of TUFF

earlier tuph, tuft porous rock, from Middle French tuf, from Old Italian tufo
First Known Use: 1815

Other Geology Terms

anthracite, boulder, cwm, erratic, igneous, intrusive, mesa, sedimentary, silt, swale

Rhymes with TUFF

bluff, buff, chough, chuff, cuff, duff, fluff, gruff, guff, huff, luff, muff, puff, rough, ruff, scruff, scuff, slough, snuff, sough, stuff, tough

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3 ENTRIES FOUND:
  1. tuff
  2. welded tuff
  3. calc-tufa
Next Word in the Dictionary: tuffetPrevious Word in the Dictionary: tufanAll Words Near: tuff
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