A toolbar is a narrow grey strip across a computer screen containing pictures, called icons, which represent different computer functions. When you want to use a particular function, you move the cursor onto its icon using a mouse.
[computing]
toolbar in British English
(ˈtuːlˌbɑː)
noun
a horizontal row or vertical column of selectable buttons displayed on a computer screen, allowing the user to select a variety of functions
In other languages
toolbar
British English: toolbar NOUN
A toolbar is a narrow strip across a computer screen containing pictures, called icons, which represent different computer functions.