Mach.
1. a valve controlling flow by means of a ball pierced with an opening in one direction and fixed to rotate on a spindle at right angles to the opening.
2. any valve that checks flow by the seating of a ball.
[ 1830-40 ]
Mach.
1. a valve controlling flow by means of a ball pierced with an opening in one direction and fixed to rotate on a spindle at right angles to the opening.
2. any valve that checks flow by the seating of a ball.
[ 1830-40 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012