Meaning of TUFF in English

TUFF

tuff 1

/tuf/ , adj. Slang.

tough (def. 13).

tuff 2

— tuffaceous /tu fay"sheuhs/ , adj.

/tuf/ , n. Geol.

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

[ 1560-70; tuf tufo. See TUFA ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .