n.
Pronunciation: ' tes-ti ŋ
Function: adjective
Date: 1858
: requiring maximum effort or ability <a most difficult and testing problem ― Ernest Bevin>
n.
Pronunciation: ' tes-ti ŋ
Function: adjective
Date: 1858
: requiring maximum effort or ability <a most difficult and testing problem ― Ernest Bevin>
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012