drilling 1
/dril"ing/ , n.
the act of a person or thing that drills.
[ 1615-25; DRILL 1 + -ING 1 ]
drilling 2
/dril"ing/ , n.
drill 3 .
[ 1630-40; alter. of G Drillich, itself alter. of L trilix triple-twilled (G dri- three- r. L tri- ) ]
drilling 1
/dril"ing/ , n.
the act of a person or thing that drills.
[ 1615-25; DRILL 1 + -ING 1 ]
drilling 2
/dril"ing/ , n.
drill 3 .
[ 1630-40; alter. of G Drillich, itself alter. of L trilix triple-twilled (G dri- three- r. L tri- ) ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012