trackball

(redirected from control ball)
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trackball

a type of computer peripheral that is larger than a typical mouse having one large ball to use to move the cursor and two large buttons for click commands.
References in periodicals archive ?
The finely graduated flow values (kvs) of the new six-way control ball valves allow a great deal of planning flexibility since there is a suitable valve even for large rooms and high heating/cooling demands.
Consequently, the control strategy of the ABC accounts for the facts that the BWR does change over time, and the mill power draw is related to ball volume, to provide a dynamic system to control ball addition.
is offering a color brochure dedicated to its CAGE-BALL high-performance control ball valve.
The joint venture has since created a trunnion-mounted control ball valve that is designed to deliver high performance.
Called Flowserve/Valbart Flow Control Srl, the joint venture will allow the two companies to work to deliver an innovative, cost-saving solution to oil and gas applications - a trunnion control ball valve.
Danieli selected Dresser Masoneilan to provide 36005 Series V-Max([R]) control ball valve sets for use in a critical steel manufacturing process.
There aren't enough out of control balls in the world.
Now she's consistently one of the tallest players on the field, and there's an assumption McCurdy can control balls in the air given her height advantage.