See Also: tuff(medicine)
tuff(1)(dictionary)
tuff(2)(dictionary)
tuff-tuff(dictionary)
tuff(encyclopedia)

tuff(1) (iou)



tuff noun. M16.
[French tuffe, tuf(e from Italian tufo: see TUFA.]
Geology. A light porous cellular rock or tufa; now usu. spec., one formed by the consolidation of volcanic ash etc.
tuffaceous adjective of the nature or texture of tuff L19.