a row of buttons on a display screen that are clicked on to start software applications or switch between open applications or active windows.
a row of selectable buttons and icons typically running along the bottom of a computer screen, displaying information such as the names of running programs
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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A row of buttons or graphical controls on a computer screen that represent open programs, among which the user can switch back and forth by clicking on the appropriate one.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Your browser may also display a lock or key symbol on its task bar to indicate invoked secure transmission.
Click on the start button at the lower left hand corner on the task bar.